Beats me 我不知道、问倒我了

例句：

Beats me why he was so mean to you.

我不明白他为什么对你这么不好。 

Beat someone to it 抢先一步 

例句：

If we do not take step immediately, someone will beat us to it, which means big loss for us.

如果我们不立即行动的话， 别人就会抢在我们前面，那可是巨大的损失。

Now you're talking 说得对 

例句：

Now you're talking, the beach sounds relaxing.

没错，去海边感觉比较放松心情。 

Good thinking 明智之举 

例句：

Good thinking to call ahead and reserve tickets.

先打电话订票真是太明智了。

What gives? 怎么了？出什么事了？

例句：

It's not like you to get so upset, what gives?

你这样烦恼焦躁，都不像你了，出什么事了？