困惑不解

wǒ duì tā de dá fù gǎn dào kùn huò bù jiě

我对他的答复感到困惑不解。

I feel puzzled at his reply.

tā duì zì jǐ de píng lùn suǒ yǐn qǐ de fǎn yìng gǎn dào kùn huò bù jiě

他对自己的评论所引起的反应感到困惑不解。

He was puzzled by the reactions to his remark.

wǒ kùn huò bù jiě de shì zhè shì zěn me zhè me kuài jiù wán chéng le

我困惑不解的是，这事怎么这么快就完成了。

What beats me is how it was done so quickly.