framework n.①构架 【同】structure ②体制【同】system
frame vt. 给……装框子 n.框子，框架
skeleton n. 【C】①框架 【同】framework ②骨骼 ③梗概，提要 【同】outline
sketch n.【C】①梗概，大意【同】outline ②略图，草图 【同】draft ③素描 ，速写 vt. 绘图，速写
line n. [C]①线，绳 ②一行（字等）③航线，电线『同』course , route ④路线【同】policy ⑤界限，边线 6.行业【同】business v.排队【同】line up【考】in line 成直线，成行
in line with 与……一致 【同】in agreement / accordance with
line up 使排成一行，排队 【同】queue up
line v. 加衬，做里子
streamline a.流线型的
underline vt. ①强调 He refused to go underlined his dislike at the place ②在……下面画线
underlying a.①潜在的【同】latent ②根本的【同】essential , fundamental ③在下面的
undermine vt. ①削弱……的基础 【同】weaken 【反】reinforce ②暗中破坏 undermine sb’s reputation; His health is undermined by drink 他的身体因饮酒而日渐衰弱
undertake vt. ①着手做【同】take up ②同意，答应 ③承担【考】undertake to do 答应做
undergo vt. 遭受，经历 【同】experience: The new aircraft underwent its well test .
incur vt. 招致，遭受 【同】bring down upon: incur a heavy loss 招致重大损失 ； incur danger 遭受危险【考】incur sth. Through sb. 由于某人招致某事 He incurred a debt through his son.【辨】occur v. 发生
recur v. 再发生
mercury n.[U] ①水银，汞 ②（M）水星
current n. ①趋势【同】trend, tendency ②(水、电空中的)流 a.当前的，流行的 【同】prevailing
currency n. 货币 【同】cash , a paper currency 纸币 foreign currency 外币
occur vi. ①出现，发生 ②存在【同】exist ③想到【考】 occur to 被想到 That kind of thing never occurred to me before.
It occurs to sb. that…… 某人突然想起 It occurred to her that she might adopt a homeless boy.
Occurrence n. 发生（的事）
Excursion n. 远足周游
Intercourse n.交际，往来 【同】communication【考】intercourse with 与……的交往
lesson n. [c] ①(pl.)课程 ②教训【考】draw lessons from 从……中吸取教训
teach sb. a lesson 教训某人一顿
course n. ①课程，教程 【同】program ②过程，进程 【同】progress ③一道菜 ④路程，路线【考】of course 当然
in the course of 在……过程中，在……期间
in course of 正在……
as a matter of course 当然的
coarse ①粗劣的，粗糙的，【同】crude ②粗俗的，粗鲁的，【同】vulgar
crude a.①粗糙的【同】coarse ②天然的【同】raw ③粗鲁的
rude a.①粗鲁的，无礼的【同】impolite, ill-mattered ②粗糙的，简陋的【同】crude , gross ③猛烈的，残暴的【同】rough【考】be rude to sb. 对某人很粗鲁
rough a.①粗糙的 ②粗野的，【同】rude,harsh ③粗略的【同】sketchy
thorough a.① 彻底的，周密的 ②十足的 【同】sheer
tough a.①坚硬的②坚强的 ③棘手的【同】difficult
hard a.①困难的 ②硬的 ③艰苦的 ④严厉的 ad. ①努力地 ②猛烈地 【考】be hard on 严厉，苛刻
harden v. (使)变硬
。