adj.困惑的；不知所措的；纠缠不清的
动词perplex的过去式和过去分词.
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。
Faced with that dilemma, he was perplexed. 他面对进退两难的局面，不知如何是好。
