You can't mix business with pleasure.

你不能把工作和娱乐混在一起。

The trip will combine business with pleasure.

此次旅行将把出差和娱乐结合起来。

Don't mix business with pleasure.

不要把工作和娱乐搀和在一起。

He beamed with pleasure at seeing her.

他看到她时喜不自胜。

She was positively beaming with pleasure.

她的确喜不自胜。