1) close call 有两个意思：

1.1) something dangerous almost happened 差点出了事

I almost got hit by a car today, but Bob pushed me out of the way and saved my life! Phew, that was a close call! 我今天差点被车撞!幸好Bob推了我一把﹐ 救我一命! 好险啊!

1.2) a close competition 胜负难分的比赛

3) call the shots 做最后决定

I don't call the shots around here. Melissa makes all of the decisions, so go talk to her. 在这里,我说的话不算数. Melissa才算。你还是和她说吧。

4) Let's call it a day 我们今天就到这儿吧

We've been studying for 12 hours straight! My eyes hurt so bad. Let's call it a day. 我们已经连续念书12个小时了！我的眼睛疼死了。今天就到此为止吧！