We use this expression to tell someone that we are happy to take responsibility for doing something.

我們用這個短語來告訴某人我們很高興為做某事負責。

A: I need to find someone who can fix my back fence.

我得找個能修我后圍欄的人。

B: Leave it to me! I've already got all the tools and materials I'll need.

交給我吧!我已經有了所需的工具和材料。

A: Someone should tell Martin not to come in today as the meeting's cancelled.

誰來告訴馬丁今天不用來了，因為會議取消了。

B: Leave it to me. I was going to phone him anyway.

交給我吧，反正我要給他打電話。