What's your beef?

你在抱怨点儿啥？

例句：

What's your beef? You could get home from work soon.

你在抱怨什么？你一会就能下班了。

Business before pleasure:

工作后再娱乐 ×

先苦后甜 √

例句：

Business before pleasure as the saying go.

正如俗话讲的那样,先工作后娱乐。

You can bet your life:

打赌你的生命 ×

肯定 √

例句：

You can bet your life that you can't finish the work on time.

你肯定不能准时完成这工作。

Walk the walk:

走一走 ×

说到做到 √

例句：

A good boss should walk the walk。

一个好老板应该说到做到。