adj. 雄辩的，有口才的，有说明力的，富于表情的，逼真的，动人的；

[例句] I heard him make a very eloquent speech at that dinner.

[例句] He was eloquent about his love of books.

n. 背书，担保，认可；

[例句] That adds up to an endorsement of the status quo...

[例句] This is a powerful endorsement for his softer style of government.

adj. 期待的，预期的，期望的；n. [数]期望值，期待着，候选人；

[例句] An expectant crowd gathered...

[例句] She turned to me with an expectant look on her face.

adj. 无力的，虚弱的，无效的，[医]阳痿的；

[例句] The aggression of a bully leaves people feeling hurt, angry and impotent...

[例句] In impotent rage he got up and stalked up and down the flat.

adj. 懒惰的，懒散的，不活跃的；

[例句] ...indolent teenagers who won't lift a finger to help.

adj. 侮慢的，无礼的，张狂，傲睨一世；

[例句] ...her insolent stare...

[例句] The officer stamped his boot. 'Don't be insolent with me, mademoiselle.'

n. 守望，远景，前途，瞭望台，警戒；

[例句] Troops tried to set up a lookout post inside a refugee camp.

[例句] He denied that he'd failed to keep a proper lookout that night.

n. 小偷，盗贼，（使蜡外流的）蜡烛心结的烛花；

[例句] The thieves snatched the camera.

[例句] ...car thieves.

n. 吨，大量，许多；

[例句] Hundreds of tons of oil spilled into the sea...

[例句] Getting rid of rubbish can cost $100 a ton.

adj. 彻底的，全面的，充分的，彻头彻尾的，根本的，详尽的，严密的，十足的，考虑周到的，非常精确的，（对细节）不厌其烦的，绝对的，完善的；prep. 〈古〉同“through”；n. [英史]专横政策；

[例句] We are making a thorough investigation...

[例句] This very thorough survey goes back to 1784...

n. 部落，部族，[生]族，一帮，一伙，大群；

[例句] ...three-hundred members of the Xhosa tribe.

[例句] …a map of Maryland marked with the names of Indian tribes.

adj. 悲剧的，悲惨的；

[例句] It was just a tragic accident...

[例句] …the tragic loss of so many lives…

n. 专制统治者，暴君，（古希腊的）僭主，专横的人；

[例句] Since 1804 the country has mostly been ruled by tyrants.

[例句] ...households where the father was a tyrant.

n. 借口，托辞，假象，掩饰；vt. 借口，假托；

[例句] They wanted a pretext for subduing the region by force...

[例句] He excused himself on the pretext of a stomach upset...

n. 攻击，袭击，开始，动手，[医]发病；

[例句] Most of the passes have been closed with the onset of winter...

[例句] With the onset of war, oil prices climbed past $30 a barrel.

n. 小球，小子弹，石弹，炮弹，（货币等的）圆浮雕；v. 用小球扔，用子弹射击，将…制成丸状，把…弄成小球形；

[例句] He was shot in the head by an air gun pellet...

[例句] A beetle was rolling a pellet of dried dung up the hill.

n. [地]沉淀物，沉积物，沉渣；

[例句] Many organisms that die in the sea are soon buried by sediment.

[例句] ...ocean sediments.

n. 大片土地，（神经纤维的）束，小册子，一段时间，长时间；

[例句] A vast tract of land is ready for development...

[例句] They cleared large tracts of forest for farming, logging and ranching.

adj. （言语、想法等）老生常谈的，陈腐的，老一套的；

[例句] The movie is teeming with obvious and trite ideas...

[例句] The simple concepts he had been taught now sounded trite and naive.

adj. 值得信赖的，可靠的，把稳，妥靠，信实；

[例句] He is a trustworthy and level-headed leader.