check up (on) 检查，核实
cheer up (使)高兴起来，(使)振作起来
clear away 把…清除掉，收拾
clear up 清理;澄清，解决;(天)放晴
come off 脱落，分开;结果，表现
come on [表示鼓励、催促等]快，走吧;开始，发生;进步，进展
come out 发表，出版;出现，显露;结果是
come round (around)顺便来访;苏醒，复原
come through 经历…仍活着，安然度过
come to 苏醒;涉及，谈到;总数为，结果是
come up 走上前来;发生，出现
count on/upon 依靠，指望
count up 共计，算出…的总数