collaborate/collaboration
collaborate/kəˌlæbəˈreit/vi.合作，协作，勾结：collaborate on a book和著一本书；collaborate with the enemy与敌人勾结［考句］Mary once collaborated with another musician to comp···
collapse
collapse/kəˈlæps/vi.垮，塌，倒；崩溃，垮台：The house collapsed because some of the wood had decayed.房子塌了，因为有些木头腐了。His plans collapsed when he lost financial backi···
collar
collar/ˈkɔlə/n.［c］1.衣领，领子：seize the thief by the collar抓住了小偷的衣领子；white collar workers白领(工作者) 2.(狗的)项圈，(马的)脖套：The dog has a collar around his nec···
colleague
colleague/ˈkɔli:ɡ/n.［c］同事，同僚：our language colleagues我们的研究语言的同事们；work as sb.’s colleague和某人共事
collect/collection/collective
collect/kəˈlekt/vt.&vi.1.收集；收取；集中：collect stamps集邮；If he could collect all the money people owe him, he would be a rich man.如果他能把所有人欠他的钱收回的话，他就···
college
college/ˈkɔlidʒ/n.［c］&［u］1.［c］专科学院，(综合大学的)学院: a freshman in the College of Arts and Science文理学院的新生；the Teacher’s College师范学院2.大学(通称)，大学···
collide/collision
collide/kəˈlaid/vi.1.碰撞，互撞：The two planes collided in the midair.两架飞机在空中相撞。［考句］The helicopter collided with a light plane and both pilots were killed.直升飞机···
colon
colon/ˈkəulən/n.［c］(pl.cola/ˈkəulə/或colons)冒号：add a colon after the main clause主句后加一个冒号Here, too, the colon must be followed by a dash.这里也是一样,应当在冒号后···
colonel
colonel/ˈkə:nl/n.［c］陆军上校或中校；团长：seniorcolonel大校Colonel is the military rank between lieutenant-colonel and brigadier.上校是陆军中校之上、准将之下的军衔。
colonial/colonialism/colonize/colony
colonial/kəˈləuniəl/adj.殖民地的，具有殖民地特点的：architecture of the colonial period殖民时期的建筑；fight against colonial rules与殖民统治作斗争colonialism/kəˈləunjəlizə···
