dedicate,(v),/ˈded.ɪ.keɪt/,"Cống hiến, hiến dâng; dành trọn cho
=to give a lot of your time and effort to a particular activity or purpose because you think it is important [synonym] devote","He has [dedicated] his life to scientific research.<br>The new president said she would [dedicate] herself to protecting the rights of the sick and the homeless.<br>Back on the island, he [dedicated] himself to politics.","<img src=""paste-5823975654680.jpg"">",[sound:dedicate_uk.mp3],"[sound:Back_on_the_island,_he_dedicated_himself_to_politics._us.mp3]"
density,(n),/ˈden.sɪ.ti/,"Sự đông đúc, sự trù mật. Độ dày, mật độ, độ chặt
=the number of people or things in a place when compared with the size of the place",The area has a high/low population [density].<br>We were unable to move because of the [density] of the crowd.<br>The region has a very high population [density].,"<img src=""paste-8035883811282.jpg"">",[sound:density_uk.mp3],[sound:The_region_has_a_very_high_population_density._us.mp3]
deplete,(v),/dɪˈpliːt/,"rút sạch, làm cạn kiệt, hút cạn
=to reduce something by a large amount so that there is not enough left","Food supplies were severely [depleted].<br>If we continue to [deplete] the earth's natural resources, we will cause serious damage to the environment.<br>The illness [depletes] the body of important vitamins.","<img src=""large.jpg"">",[sound:deplete_uk.mp3],[sound:The_illness_depletes_the_body_of_important_vitamins._us.mp3]
derivative,(n),/dɪˈrɪv.ə.tɪv/,"(Hoá học) Chất dẫn xuất. (Ngôn ngữ học) Từ phái sinh.
=a word or thing that has been developed or produced from another word or thing",Happiness' is a [derivative] of 'happy'.<br>Crack is a highly potent and addictive [derivative] of cocaine.<br>This is a [derivative] of seaweed that is currently used as a food additive.,"<img src=""agri_for_biofuel_teaser_image.jpg"">",[sound:derivative_uk.mp3],[sound:This_is_a_derivative_of_seaweed_that_is_currently_used_as_a_food_additive._us.mp3]
diesel,(n),/ˈdiː.zəl/,"dầu điêzen
=a type of heavy oil used as a fuel instead of petrol/gas",a [diesel] engine (= one that burns diesel)<br>[diesel] cars/locomotives/trains<br>My new car runs on (= uses) [diesel].,"<img src=""Diesel-Engine-Car-3.jpg"">",[sound:diesel_uk.mp3],[sound:My_new_car_runs_on_diesel._us.mp3]
dim,(adj),/dɪm/,"Mờ, lờ mờ, tối mờ mờ, không rõ ràng; nhìn không rõ
=not bright","the [dim] glow of the fire in the grate<br>This light is too [dim] to read by.<br>Below decks, the lights were [dim].","<img src=""paste-11261404250303.jpg"">",[sound:dim_uk.mp3],"[sound:Below_decks,_the_lights_were_dim._us.mp3]"
diminish,(v),/dɪˈmɪn.ɪʃ/,"Bớt, giảm, hạ bớt, giảm bớt; thu nhỏ.
=to become or to make something become smaller, weaker, etc. [synonym ]decrease",The world's resources are rapidly [diminishing].<br>His influence has [diminished] with time.<br>These memories will not be [diminished] by time.,"<img src=""Stature.jpg"">",[sound:diminish_uk.mp3],[sound:These_memories_will_not_be_diminished_by_time._us.mp3]
dire,(adj),/daɪər/,"Thảm khốc, khốc liệt, tàn khốc; kinh khủng rất nghiêm trọng
=[usually before noun] (formal) very serious",These people are in [dire] need of help<br>He gave a [dire] warning that an earthquake was imminent<br>This decision will have [dire] consequences for local people.,"<img src=""paste-5364414153112.jpg"">",[sound:dire_uk.mp3],[sound:This_decision_will_have_dire_consequences_for_local_people._us.mp3]
discharge,(n),/ˈdɪs.tʃɑːdʒ/,"Sự tuôn ra, sự tháo ra, sự tiết ra, sự bốc ra, sự đổ ra, sự chảy ra.
=the act of sending out waste liquid or gas",Thousands of fish were killed as a result of a [discharge] of poisonous chemicals from a nearby factory.<br>an oily [discharge]<br>Waste water [discharge] into the lagoon has also been banned.,"<img src=""paste-1340029797188.jpg"">",[sound:discharge_uk.mp3],[sound:Waste_water_discharge_into_the_lagoon_has_also_been_banned._us.mp3]
disposable,(adj),/dɪˈspəʊ.zə.bəl/,"Có thể bỏ đi; chỉ dùng một lần (rồi vứt đi)
=used to describe a product that can be bought cheaply and is meant to be thrown away after use",[disposable] nappies<br>a [disposable] camera<br>daily [disposable] contact lenses,"<img src=""8008641-Varieties-of-disposable-plates-cups-and-cutlery-Stock-Photo-disposable-tableware-plastic.jpg"">",[sound:disposable_uk.mp3],[sound:daily_disposable_contact_lenses_us.mp3]
disruption,(n),/dɪsˈrʌp.ʃən/,"Sự ngắt quãng, sự gián đoạn
=an interruption in the usual way that a system, process, or event works",It would cause a tremendous [disruption] to our work schedule to install a different computer system.<br>A crackdown on illegal-immigrant hiring could create widespread workplace [disruptions].<br>The accident brought widespread [disruption] on the roads.,"<img src=""paste-3637837300070.jpg"">",[sound:disruption_uk.mp3],[sound:The_accident_brought_widespread_disruption_on_the_roads._us.mp3]
distribute,(v),/dɪˈstrɪb.juːt/,"Phân bổ, phân phối, phân phát.
=to give things to a large number of people; to share something between a number of people. to send goods to shops/stores and businesses so that they can be sold",The newspaper is [distributed] free<br>The organization [distributed] food to the earthquake victims.<br>The money was [distributed] among schools in the area.,"<img src=""paste-3659312136962.jpg"">",[sound:distribute_uk.mp3],[sound:The_money_was_distributed_among_schools_in_the_area._us.mp3]
double,(v),/ˈdʌb.əl/,"Làm gấp đôi, tăng gấp đôi, nhân gấp đôi
=to become, or make something become, twice as much or as many",Membership almost [doubled] in two years.<br>[Double] all the quantities in the recipe to make enough for eight people.<br>The program will [double] the amount of money available to help pay for child care.,"<img src=""doc-truyen-doremon-61-2014-06-09.jpg"">",[sound:double_uk.mp3],[sound:The_program_will_double_the_amount_of_money_available_to_help_pay_for_child_care._us.mp3]
drastic,(adj),/ˈdræs.tɪk/,"Tác động mạnh mẽ, quyết liệt.
=extreme in a way that has a sudden, serious or violent effect on something",[drastic] measures/changes<br>The government is threatening to take [drastic] action.<br>a [drastic] shortage of food,"<img src=""nn.3150-F1.jpg"">",[sound:drastic_uk.mp3],[sound:a_drastic_shortage_of_food_us.mp3]
effective,(adj),/ɪˈfek.tɪv/,"Hữu hiệu, có kết quả. Có hiệu lực, có kết quả.
=producing the result that is wanted or intended; producing a successful result",It's an extremely [effective] remedy for a headache<br>She's a very [effective] teacher.<br>This style of decoration is simple yet [effective].,"<img src=""paste-605590389110.jpg"">",[sound:effective_uk.mp3],[sound:This_style_of_decoration_is_simple_yet_effective._us.mp3]
efficient,(adj),/ɪˈfɪʃ.ənt/,"Có năng suất cao, có hiệu suất cao, không lãng phí tài nguyên, thời gian, sức lực
=doing something well and thoroughly with no waste of time, money or energy","the [efficient] use of energy<br>As we get older, our bodies become less [efficient] at burning up calories.<br>The city's transport system is one of the most [efficient] in Europe","<img src=""stage-700x300.jpg"">",[sound:efficient_uk.mp3],[sound:The_city's_transport_system_is_one_of_the_most_efficient_in_Europe_us.mp3]
electricity,(n),/ɪˌlekˈtrɪs.ə.t̬i/,"Điện, điện lực.
=a form of energy that can be produced in several ways and that provides power to devices that create light, heat, etc.",The [electricity] has been turned off.<br>an [electricity] generating company<br>powered/heated by [electricity],"<img src=""paste-1769526526732.jpg"">",[sound:electricity_uk.mp3],[sound:powered_heated_by_electricity_us.mp3]
emit,(v),/ɪˈmɪt/,"Phát ra (ánh sáng, nhiệt ), bốc ra, tỏa ra (mùi vị, hơi ).
=to send out a beam, noise, smell, or gas",The metal container began to [emit] a clicking sound.<br>Sulphur gases were [emitted] by the volcano.<br>The alarm [emits] infrared rays which are used to detect any intruder,"<img src=""paste-7829725381456.jpg"">",[sound:emit_uk.mp3],[sound:The_alarm_emits_infrared_rays_which_are_used_to_detect_any_intruder_us.mp3]
enclosed,(adj),/ɪnˈkləʊzd/,"(không gian) khép kín, bị đóng kín, bị vây kín chặt xung quanh
=surrounded by walls, objects, or structures",He doesn't like [enclosed] spaces<br>She turned on her heel and led the two men down the passage and through a dark kitchen to an [enclosed] yard.<br>It was an [enclosed] arena with limited avenues of escape.,"<img src=""paste-9444633084686.jpg"">",[sound:enclosed_uk.mp3],[sound:It_was_an_enclosed_arena_with_limited_avenues_of_escape._us.mp3]
encourage,(v),/ɪnˈkʌr.ɪdʒ/,"Khuyến khích, cổ vũ, động viên.
=to persuade somebody to do something by making it easier for them and making them believe it is a good thing to do",Banks actively [encouraged] people to borrow money.<br>We were [encouraged] to learn foreign languages at school.<br>We [encourage] the victims to talk freely about their experiences.,"<img src=""1108513-Clipart-Businessman-Encouraging-And-Pushing-His-Friend-Forward-Royalty-Free-Vector-Illustration.jpg"">",[sound:encourage_uk.mp3],[sound:We_encourage_the_victims_to_talk_freely_about_their_experiences._us.mp3]
energy efficient,(adj),/ˌen.ə.dʒi ɪˈfɪʃ.ənt/,"(đồ dùng) tiết kiệm điện/nhiên liệu/năng lượng
=using little electricity, gas, etc :",[energy-efficient] homes/[energy-efficient] lighting<br>The company has fitted [energy-efficient] lighting throughout the building.<br>We need to become more [energy efficient] so that we don't generate power just to waste it.,"<img src=""paste-9182640079214.jpg"">",[sound:energy_efficient_uk.mp3],[sound:We_need_to_become_more_energy_efficient_so_that_we_don't_generate_power_just_to_waste_it._us.mp3]
engine,(n),/ˈen.dʒɪn/,"Máy động cơ.
=the part of a vehicle that produces power to make the vehicle move",a diesel/petrol [engine]<br>My car had to have a new [engine].<br>The plane was forced to land because of [engine] problems.,"<img src=""paste-15972983374600.jpg"">",[sound:engine_uk.mp3],[sound:The_plane_was_forced_to_land_because_of_engine_problems._us.mp3]
engineer,(v),/ˌen.dʒɪˈnɪər/,"thiết kế và xây dựng một cái gì đó
=to design and build something",The car is beautifully [engineered] and a pleasure to drive.<br>Many of Kuwait's spacious freeways were [engineered] by W S Atkins.<br>He [engineered] the water supply project,"<img src=""paste-8937826944056.jpg"">",[sound:engineer_uk.mp3],[sound:He_engineered_the_water_supply_project_us.mp3]
entirely,(adv),/ɪnˈtaɪə.li/,"Toàn bộ, toàn vẹn, trọn vẹn; hoàn toàn.
=in every way possible; completely",I [entirely] agree with you.<br>I'm not [entirely] happy about the proposal.<br>That's an [entirely] different matter.,"<img src=""car-made-of-cardboard-01.jpg"">",[sound:entirely_uk.mp3],[sound:That's_an_entirely_different_matter._us.mp3]
entrepreneur,(n),/ˌɒn.trə.prəˈnɜːr/,"người khởi nghiệp, người tự sáng lập
=a person who makes money by starting or running businesses, especially when this involves taking financial risks công ty mới",He was one of the [entrepreneurs] of the 80s who made their money in property<br>There is also fertile ground for serial [entrepreneurs] outside these industries.<br>She uses successful [entrepreneurs] as mentors and role models for her students.,"<img src=""paste-8529805050240.jpg"">",[sound:entrepreneur_uk.mp3],[sound:She_uses_successful_entrepreneurs_as_mentors_and_role_models_for_her_students._us.mp3]
estimate,(v),/ˈes.tɪ.meɪt/,"Đánh giá; ước lượng.
=to guess or calculate the cost, size, value, etc of something",They [estimate] (that) the journey will take at least two weeks.<br>It is [estimated] (that) the project will last four years<br>It is hard to [estimate] how many children suffer from dyslexia,"<img src=""estimate_1470756627999.gif"">",[sound:estimate_uk.mp3],[sound:It_is_hard_to_estimate_how_many_children_suffer_from_dyslexia_us.mp3]
exhaust,(n),/ɪɡˈzɔːst/,"ống xả khí thải
=a pipe through which exhaust gases come out",My car needs a new [exhaust].<br>About all you needed then were bigger engines with bigger [exhausts]<br>The tail [exhaust] pipe of the motor vehicle emitted poisonous smoke,"<img src=""2326-991x470.jpg"">",[sound:exhaust_uk.mp3],[sound:The_tail_exhaust_pipe_of_the_motor_vehicle_emitted_poisonous_smoke_us.mp3]
exhaust,(v),/ɪɡˈzɔːst/,"Làm kiệt quệ, làm rỗng, làm cạn; dốc hết, dùng hết.
=to use all of something so that there is none left",Within three days they had [exhausted] their supply of food.<br>Don't give up until you have [exhausted] all the possibilities.<br>I'm afraid he's [exhausted] my patience.,"<img src=""energy-for-prayer.jpg"">",[sound:exhaust_uk.mp3],[sound:I'm_afraid_he's_exhausted_my_patience._us.mp3]
expend,(v),/ɪkˈspend/,"Tiêu, tiêu dùng (tiền ). Dùng hết, dùng cạn.
=(formal) to use or spend a lot of time, money, energy, etc.",She [expended] all her efforts on the care of home and children.<br>Smith had [expended] large sums in pursuing his claim through the court.<br>Most animals [expend] a lot of energy searching for food.,"<img src=""091223-tdy-money.jpg"">",[sound:expend_uk.mp3],[sound:Most_animals_expend_a_lot_of_energy_searching_for_food._us.mp3]
extend,(v),/ɪkˈstend/,"Kéo dài (thời hạn ), gia hạn, mở rộng.
=to make something longer or larger. to make something last longer",to [extend] a fence/road/house.<br>The show has been [extended] for another six weeks.<br>We have plans to [extend] our house (= to make it bigger).,"<img src=""extend-a-step-5.jpg"">",[sound:extend_uk.mp3],[sound:We_have_plans_to_extend_our_house_._us.mp3]