付清，（某行动） 取得成功，带来好结果；

[例句] It would take him the rest of his life to pay off that loan.

[例句] ...his bid to raise funds to pay off his creditors...

n. 效力，潜能，权势，（男人的）性交能力；

[例句] They testify to the extraordinary potency of his personality...

[例句] All their songs have a lingering potency.

n. 门阶，厚三明治或面包；v. 上门访问；

[例句] The newspaper contacted his grandmother to trace his present address, and later doorstepped him at his home.

[例句] It is all too easy to lose sight of what is happening on our own doorstep...

n. 农民，农夫，佃农，粗俗的人；

[例句] ...the peasants in the Peruvian highlands...

[例句] Chinese peasants farm their own plots.

n. 污染物；

[例句] A steady stream of California traffic clogs the air with pollutants.

n. 海报，招贴，公告，招贴画，张贴者，[古语]急行的人，匆忙赶路的人；

vi. 进入预备学校，预备，准备；vt. 使预备好；n. 预备学校，准备，预备功课，家庭作业，大学预科生；adj. 预备的；

[例句] After prepping the boat, they sailed it down to Carloforte.

[例句] I was already prepped for surgery so I went straight into theatre.

n. 保存，保留，保护，防腐，维护，保持；

[例句] We will do everything to preserve peace.

[例句] ...an effort to fit in more students while preserving standards.

n. 棱镜，棱晶，[数]棱柱体，角柱（体），[物]（结晶）柱，[物]分光光谱，光谱的七色，折光物体；

[例句] Through the smoky prism of time, I could just barely make out my father as a young man.

n. 放映机，幻灯机，投影仪，设计者，放映技师；

[例句] ...a 35-millimetre slide projector.

adj. 制药的，配药的；n. 药物；

[例句] ...a Swiss pharmaceutical company...

[例句] Antibiotics were of no use, neither were other pharmaceuticals.

n. 体格，体形；

[例句] He has the physique and energy of a man half his age.

[例句] ...men of powerful physique.

n. 彩色粉笔，粉蜡笔，彩色粉笔画，蜡笔画，轻淡柔和的色彩；adj. 彩色粉笔画的，蜡笔画的，（色彩）淡的，柔和的；

[例句] ...delicate pastel shades.

[例句] ...pastel pink, blue, peach and green.

adj. 沉思的，深思的；

[例句] He looked suddenly sombre, pensive.

n. 光合作用，光能合成；

adj. 挑衅的，刺激性的；n. 刺激物，兴奋剂；

[例句] He has made a string of outspoken and sometimes provocative speeches in recent years...

[例句] His behavior was called provocative and antisocial.

adj. 属于偏执狂的，患妄想狂的，过分猜疑的；n. 偏执狂患者，妄想症患者；

[例句] I'm not going to get paranoid about it.

[例句] ...a paranoid politician who saw enemies all around him.

n. 背信弃义，背叛，出卖；

adj. 可怜的，可鄙的，充满同情或怜悯的，惨；

[例句] He sounded both pitiful and eager to get what he wanted...

[例句] It was the most pitiful sight I had ever seen.

adj. 可以喝的，适合饮用的；n. 饮料；