211. clear= apparent a. 显然的
212. cling to= attach to v. 附着
213. close= careful a. 严密的;周密的
214. clue= hint n. 线索
215. coating= cover n. 覆盖层
216. coincide with= be as the same time as v.同时发生
217. collaborate= cooperate v. 合作
218. collaboration= joint effect n. 合作成果
219. collect =gather v. 收集
220. collide= hit each other v. 碰撞
221. collide with =run into v. 碰撞
222. commemorate =celebrate v. 庆祝;纪念
223. compact =concise a. 紧密的;简明的
224. compact= compressed(结实的) a. 紧密的;简明的
225. comparable= equivalent a. 可比较的
226. comparative = relative a.相当的
227. compel =push v. 强迫
228. compelling= convincing a. 令人信服的
229. compensate= reimburse v. 赔偿;补偿
230. compensate for =balance phrv. 赔偿;补偿
231. complaint =protest v. 抗议
232. complement= supplement n. 补充物
233. complement= add to v. 补充
234. completely= totally ad. 完全地
235. complex= elaborate a. 复杂的
236. complex =system n. 复合物;综合体
237. complicated =complex a. 复杂的
238. complicated =made things more difficult a. 复杂的
239. component= constituent a. 组成的
240. composition= mixture n. 合成物