A:Why did Tom get promotion again?

为什么Tom又得到提拔了？

B:He always works so hard. He did not leave until 9 o'clock.

他工作总是很卖力，不到晚上九点他是不会下班的。

A:You have put your finger on it. After all he has spent much more time on work than us.

你说到点子上了。毕竟他在工作上花的时间比我们多得多。

put  one's finger on something

说话说到要害；说到点子上

Something is wrong with this room,but I can't put my finger on what it is.

这房间有点不对劲，但是我弄不清楚到底是啥不对劲。

We just couldn't put our fingers on what had changed about her.

我们就是不太确定她到底哪里变了。

spend  some time on...

花时间做某事

You'd better spend your time on some worthwhile reading.

你最好把时间花在一些有价值的书上。

not...until

直到...才...

It was not until next day that I learned the truth.

直到第二天，我才明白事情的真相。