我丝毫不知道他想说什么，因为他的解释对我来说不够清楚。

I haven't the slightest idea of what he means because his explanation is obscure to me.

youdao

他对此解释得很正确，但不够清楚。

He did not explain it correctly and clearly.

youdao

他对此解释得既不正确，又不够清楚。

He did not explain it correctly or clearly.

youdao

他对此解释得既不正确，又不够清楚。

He did not explain it correctly or clearly.

youdao