| 例句 |
weight noun weight ♦︎ pressure ♦︎ strain ♦︎ stress ♦︎ load ♦︎ mass ♦︎ densityThese are all words for how heavy sth is or how much it presses on sth else. 这些词均表示重量、压力。PATTERNS AND COLLOCATIONS 句型和搭配◆under the weight / pressure / strain / stress / load◆(a) heavy weight / pressure / strain / load◆(a / an) considerable / enormous / great / immense weight / pressure / strain / stress◆high / low pressure / stress / density◆to put weight / pressure / strain / stress on sth◆to bear the weight / strain / stress / load◆to take the weight / strain / stress■ weight [uncountable, countable] how heavy sb/sth is; the fact of being heavy; an object that is heavy 重量；重；重物◆It is about 76 kilos in weight.这东西重约76公斤。◆Bananas are sold by weight.香蕉按重量出售。◆I just hoped the branch would take my weight.我只是希望树枝经得住我的体重。◆Don't put any weight on that ankle (= don't stand on it) for at least a week.至少一个星期内别让那只脚踝受力。◆The doctor said he should not lift heavy weights.医生说他不应提重物。ⓘ Weight is also used to talk about people becoming heavier/fatter or lighter/thinner. * weight还可用来表示人变重、变胖或变轻、变瘦◆She is trying to lose weight (= become less heavy and less fat).她正设法减肥。◆He's put on / gained weight (= become heavier and fatter) since he gave up smoking.他戒烟后体重增加了。◆Sam has a weight problem (= is too fat).萨姆太胖了。◆No more for me. I need to watch my weight.我不再吃了，我得控制体重。 ▸ weigh verb [transitive] ◆How much do you weigh (= how heavy are you)?你有多重？◆She weighs 60 kilos.她体重60公斤。◆These cases weigh a ton (= are very heavy).这些箱子重得很。◆He weighed himself on the bathroom scales.他在浴室磅秤上称体重。■ pressure [uncountable, countable] the force or weight with which sth presses against sth else; the force produced by a particular amount of gas or liquid in an enclosed space 压力；压强◆The nurse applied pressure to his arm to stop the bleeding.护士压住他的胳膊止血。◆The door swung open beneath the gentle pressure of Jill's hand.吉尔用手轻轻一推，门就开了。◆air / water pressure气压；水压◆Check the tyre pressure (= the amount of air in a tyre) regularly.要定期检查轮胎气压。◆She suffers from high blood pressure.她有高血压。▸ press verb [transitive, intransitive] (always used with an adverb or preposition 总是与副词或介词连用) ◆She pressed her lips together.她紧抿着双唇。◆He pressed up closer against the wall.他往墙上贴得更紧了。■ strain [uncountable, countable] (often disapproving) the pressure that is put on sth when a physical force stretches, pushes or pulls it, especially when this pressure is too great （尤指过强的）拉力，压力，张力◆The rope broke under the strain.绳子拉断了。◆You should try not to place too much strain on muscles and joints.你应尽量不要让肌肉和关节太受力。▸ strain verb [intransitive] (always used with an adverb or preposition 总是与副词或介词连用) ◆The dogs were straining at the leash.几条狗用力拽着皮带。■ stress [uncountable, countable] pressure put on sth that can damage it or make it lose its shape 压力；应力；承受力◆When you have an injury you start putting stress on other parts of your body.一旦受伤，你就会让身体其他部位受力。◆a stress fracture of the foot (= one caused by such pressure) 足部应力骨折◆Engineers calculated the stresses borne by each of the bridge supports.工程师计算出桥的每根支柱所承受的压力。NOTE 辨析 Pressure, strain or stress? Pressure can be heavy, firm, gentle or light. Strain and stress usually suggest that there is too much pressure. Strain is used especially when things are pulled or stretched. Pressure and stress are used more when things are pressed. Stress is often used to talk about pressure on parts of the body, or in buildings and other structures. * pressure可以用heavy、firm、gentle或light形容。strain和stress通常指压力过大。strain尤指拉力或张力。pressure和stress较多指压力。stress常指身体部位、建筑物或其他结构的承受力。■ load [countable, usually singular] the amount of weight that is pressing down on sth 承载量；负荷◆Be careful not to demolish a load-bearing wall.小心别损坏承重墙。◆Modern backpacks spread the load over a wider area.新式背包把承重量分散在更大的面积上。■ mass [uncountable] (physics 物理) the quantity of material that sth contains 质量◆calculating the mass of a planet计算一颗行星的质量ⓘ In non-technical language weight is used for this meaning. 在非专业用语中，用weight表示此义。■ density [countable, uncountable] (physics 物理) how heavy a solid, liquid or gas is in relation to its size or volume （固体、液体或气体的）密度◆similar stars of the same mass and density质量和密度相同的类似恒星◆Vitamin D deficiency causes a loss of bone density.缺乏维生素D会导致骨密度下降。ⓘ Density is measured by dividing the mass of sth by its volume. * density等于质量除以体积。 |