leave it at that 雖然對某事不滿，但到此不再追問、或不再追究

說明：

leave 不是解「離開」，或「留下」。而是指「保持某種狀態」。leave 是 vt，it 是上下文所指的某件事。

例子：

You have told the same story again and again. I won't argue with you. Let's leave it at that.

by Thomas Shum