be airtight，be hermetic，obfurage，obturation ；
[例句] 那些透明密闭容器一浸入湖水中就开始溶解。 The clear capsules start dissolving as soon as they are immersed in the lake.
[例句] 脱粒的湿玉米可以安全地贮存在密闭的贮藏设备里. Wetshelled corn can be safely stored in air - tight storage units.
train，drill，trainer，instructor，coach ；
[例句] 任何称职的教练都会采取和我一模一样的行动。 Any coach worth his salt would do exactly as I did.
[例句] 他重新树立自己地位的机会因教练的战术而流产了。 His opportunity to re-establish himself had been nobbled by the manager's tactics.
phrator，[化] homdogy，cognation，kin ；
[例句] 它们沾满了你们同族人的鲜血. They are stained with the blood of your relations!
[例句] 未成功的杂交组合都属非同族的两个种. The unsuccessful crosses involved two species belonging to different series.
[化] extract，extraction，leach ；
[例句] 这种蜡质属于乙醇有机溶剂的萃取物. The waxes are classed as alcohol or organic solvent extracted materials.
[例句] 这种萃取改变了整个毛纤维中所有细胞膜的网状结构. Such extraction modifies the whole cell - membrance network throughout the wool fiber.
fabricate，make up，fiction，cook up，invent ；
[例句] 事实和虚构之间的界限正变得模糊起来。 The line between fact and fiction is becoming blurred.
[例句] 这部作品中描述的人物和事件均属虚构。 The persons and events portrayed in this production are fictitious.
[医] infectious [contagious] disease，contagion，zymosis，communicable disease，infection；
[例句] 传染病正在遭受洪灾的很多灾民中蔓延。 Infectious diseases are spreading among many of the flood victims.
[例句] 这种传染病在世界范围内的重大影响还未完全显现。 The major impact of this epidemic worldwide is yet to come.
birth control，contraception，practise contraception，conception control，contracept ；
[例句] 如果使用得当，避孕套是很有效的避孕手段。 Condoms are an effective method of birth control if used with care.
[例句] 服务项目包括避孕建议和健康检查，并且免费提供。 The service covers contraceptive advice and health checks, and is available free.
invent，invention，expound，contrivance，contrive ；
[例句] 这项新发明能保证啤酒始终保持丰富的泡沫。 The new invention ensures the beer keeps a full, frothy head.
[例句] 推广他的新发明一直是件棘手的事情。 It's been a tricky business marketing his new invention.
rule，established practice，well-behaved，well-disciplined，propriety ；
[例句] 在学校不守规矩是要挨藤条的。 In school, you knew if you misbehaved you would get the cane.
[例句] 很多不能或不按规矩行事的小孩常常被人欺负。 Many children who can't or don't conform are often bullied.
[机] velocity of flow，strength，[水] current velocity，current speed ；
[例句] 河水在平坦的河床上减慢了流速. The river slows on the flat bottom.
[例句] 缓慢的流速足以防止还原剂的散失. A low rate is enough to prevent flushing of reductants.
[机] cylinder stator，cylinder ；
[例句] 气体似乎由一汽缸漏出。 The gas had apparently leaked from a cylinder.
[例句] 混合体由汽化器注入汽缸. The mixture is fed into the cylinder from the carburettor.
dead colour，dark ；
[例句] 穿着灰色和黑色的暗色调衣服 dressed in sombre shades of grey and black
[例句] 她那暗色的嘴微微启开,露出洁白的小牙齿. Her dusky mouth was parted slightly to show tiny white teeth.
narrate，recount，relate，account，depiction ；
[例句] 普里马科夫先生详细叙述了他和总统的会面。 Mr Primakov gave a full account of his meeting with the President.
[例句] 这部小说是从这个女孩的视角来叙述的。 The novel is shown from the girl's viewpoint.
draw forth，lead to，drawing off，extraction，derivation ；
[例句] 医学研究引出的有商业价值的副产品 commercial spin-offs from medical research
[例句] 这种措词可能会引出歧义. The wording is likely to lead to ambiguity.
direct connection，straight in ；
[例句] 一段石阶从鹅卵石路上一直向上直通城墙。 A number of staircases ascend from the cobbled streets onto the ramparts.
[例句] 过了林木线之后沿着长满青草的小道直通陡峭的顶. Above the treeline take a grassy path leading steeply towards the summit.
weepage，[水] sluicing ；
[例句] 台阶式溢流坝是一种全新的泄水建筑物形式. Stepped spillways is a type of new spillway structure.
[例句] 涵闸具有挡水、泄水的作用. Culvert and sluice block and sluice water.
expound，clarify，elucidate，enucleate，illuminate ；
[例句] 自始至终，她摘引讨论内容来阐明她的分析。 Throughout, she illustrates her analysis with excerpts from discussions.
[例句] 影片强有力地阐明了主旨。 The film makes its points with cogency and force.
harbor ；
[例句] 水手们在等待离港的时候四处闲逛。 Sailors hung about while they waited to ship out.
[例句] 他们请求香港允许他们在那里入港停留。 They had asked Hong Kong for permission to put into port there.
instant，[物] instantaneous，microtime ；
[例句] 在撞击过程中, 动量的变化是突然的,但非瞬时的. In a crash, momentum changes abruptly but not instantaneously.
[例句] 有时,在局部速度中可能出现瞬时脉动. Sometimes temporal fluctuation may take place inthe local velocity.
break the law，be illegal，irregularity，transgress ；
[例句] 很多挣扎求生的企业不惜违法逃税。 Many struggling firms are ready to break the law by dodging tax.
[例句] 被告要求考虑到类似的21起违法行为的情况。 The defendant asked for 21 similar offences to be taken into account.