explain的名词怎么写

He rang off before I could explain.

我还没来得及解释他就挂了。

'Let me explain!' he added helpfully.

“让我来说明一下！”他热心地补充道。

Please don't get cross. Let me explain.

请别发火，让我来解释一下。

How can I explain if you keep butting in?

你一直插嘴，我还怎么解释？

Let me explain why.

让我来解释为什么。