perplexed

a. 困惑的,不知所措的
v. 困惑了,使...更复杂了

When new math was introduced into schools, many parents were perplexed by it.

当学校开设新的数学课时，许多家长对此感到迷惑不解。

The question perplexed me.

那问题把我难住了.