in sum

总而言之

例句与用法：

In sum, theory must be combined with practice.

总之，理论必须同实践相结合。

In sum, the plan failed.

总之，计画告吹了。

In sum, we must do it now.

总而言之，我们必须现在就干。

详细释义：

简言之

My meaning, in sum, is that you must stay.

简单地说, 我的意思就是你必须留下来。