explain的意思有解释、阐述、说明。有及物动词和不及物动词之分。

及物动词用法：

1、解释；说明；阐明[(+to)][+wh-][+(that)]

He explained that he had been cheated.

他解释说他是上当受骗了。

Can you explain how the machine operates?

你能解释一下这机器是如何运转的吗？

Please explain this rule to me.

请给我讲解一下这条规则。

2、为…辩解；说明…的理由(或原因)[+wh-]

He made up a story to explain why he was absent.

他编造了一个故事为他的缺席辩解。

不及物动词用法：

1、解释；说明；辩解

I've got to explain about it.

我得解释一下此事。