adj. 轻量的，不重要的；n. 轻量级选手，不重要的人；

[例句] ...lightweight denim...

[例句] The company manufactures a range of innovative light-weight cycles.

adv. 因此，所以，故，乃；

[例句] Muscle cells need lots of fuel and therefore burn lots of calories...

[例句] Nothing was to prevent him now from becoming the richest, and therefore the happiest, man in the world.

adj. 主要的，占主导地位的，占优势的，卓越的，有影响的，特优种；

[例句] Amanda's predominant emotion was that of confusion.

adj. 小心的，慎重的，精明的，节俭的，顾虑周到的，稳健的，世故的，精明的；

[例句] It is always prudent to start any exercise programme gradually at first...

[例句] Being a prudent and cautious person, you realise that the problem must be resolved.

vt. 窜改；vi. 篡改，（用不正当手段）影响，干预，瞎摆弄，贿赂；n. 夯，夯具，捣乱者，填塞者，反射器；

[例句] I don't want to be accused of tampering with the evidence...

[例句] He found his computer had been tampered with.

v. 长途跋涉，拖着腿走，徒步旅行，（牛）拉货车；n. 长途跋涉，艰难的旅程，远距离行走；

[例句] ...trekking through the jungles...

[例句] This year we're going trekking in Nepal.

n. 混乱，焦虑；

[例句] ...the political turmoil in South Africa.

[例句] Her marriage was in turmoil...

adj. 显著的，突出的，重要的，主要的，跳跃的，（指角）凸出的；n. 凸角，[建]突出部，进攻或防卫阵地的突出部分；

[例句] He read the salient facts quickly...

[例句] Chronic fatigue is also one of the salient features of depression.

n. 反拨力，排拒力，防水布，防水剂，驱虫剂，消肿药；adj. 拒人于排斥的，千里之外的，令人厌恶的，防水的，相斥的；

[例句] ...a very large, very repellent toad...

[例句] She still found the place repellent.

n. 稳定的进程，要旨，男高音，票据的限期；adj. 男高音的；

[例句] ...a free, open-air concert given by the Italian tenor, Luciano Pavarotti.

[例句] ...one of the best tenor sax players ever.

n. （拴牲畜用的）系绳，限度，极限；vt. 用绳拴住，拘束，束缚；

[例句] She was jealous, humiliated, and emotionally at the end of her tether...

[例句] I've reached the end of my tether.

删去，拟出，自成一格，用力打；

[例句] She wanted me to strike out on my own, buy a business.

[例句] ...a desire to make changes and to strike out in new directions.

adj. 焦虑的，担忧的，混乱的，存在诸多问题的；v. 费神，费心( trouble的过去式和过去分词)；

[例句] Rose sounded deeply troubled...

[例句] She was conscious of a troubled expression on Ann's face.

v. （使）变稀薄， （使）变稀少， （使）变细( thin的第三人称单数 )；

[例句] A thin cable carries the signal to a computer...

[例句] James's face was thin, finely boned, and sensitive.

n. （一小块）污垢，煤烟，淫秽的书籍（故事，谈话等），（禾草、禾谷类的）黑粉病；vi. 弄脏，患黑穗病；vt. 弄脏，使害上黑穗病；

[例句] I find the media's growing obsession with smut and sensation deplorable.

[例句] ...schoolboy smut.

n. 违反，违法，罪过；

[例句] If a politician transgresses, that is not the fault of the media.

[例句] ...a monk who had transgressed against the law of celibacy...

n. 灯火管制期，停电，暂时失去知觉，（新闻等的） 封锁；

[例句] ...blackout curtains.

[例句] ...a media blackout imposed by the Imperial Palace...

n. 分，一分钱的硬币，零钱，（作单位的）百；

[例句] A cup of rice which cost thirty cents a few weeks ago is now being sold for up to one dollar...

[例句] We haven't got a cent.

adj. 不尽责的，怠工的，有过失的，拖欠债务的；n. 流氓，少年罪犯，失职者；

[例句] ...remand homes for delinquent children.

[例句] ...a delinquent borrower.

vt.& vi. 劝告，劝说，倡导，勉励；

[例句] Kennedy exhorted his listeners to turn away from violence...

[例句] He exhorted his companions, 'Try to accomplish your aim with diligence'.