那位女士一脸困惑，眉头皱成了一团。

The woman looked ___puzzled, her brow furrowed in ___confusion.

这个数学问题难住了全班同学。

The math problem ___puzzled the whole class.

数学题太难了，完全把我难住了。

The math problem was so hard that it completely ___puzzled me.