If he had known what he was doing they wouldn't have attacked. But he is clumsy and stupid as a baby.

如果他知道怎么做就可以避免攻击，而他却像一个孩子一样不懂事。

youdao

CHARLES: I am so clumsy and stupid, not nearly good enough for you.

查尔斯：我这么的“愚蠢和笨拙”，根本就配不上你。

youdao

I'm so clumsy and stupid and not nearly good enough for you.

我是这么愚蠢和笨拙，要本就配不上你。

youdao

It was a gaffe, and a clumsy and stupid one at that.

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