be certain to do sth 一定做…
for certain 肯定地;确凿地
make certain (把…)弄确实,弄清楚
by chance 偶然,碰巧,意外地
take a chance 冒险,投机
take one's chance 碰运气,听任命运
in charge of 主管,掌管,照管
take charge 掌管,负责,看管
under the charge of 在…掌管(或看管)之下
check in 办理登记手续,报到
check out 结账后离开;检验合格
check up 核对,检验
cheer up 使高兴,使高兴起来
clear away 把…清除掉;(云)消失
clear off 消除,摆脱(负担等)
clear out 把…清出(或出空)
clear up 消除(误会等);整理
close about 围住,包围
close down (工厂等)关闭,倒闭
close in 包围;迫近;渐短
close up 关闭;堵塞;靠近
come to a close 结束,终止
(责任编辑:田学江)