be perplexed by sth
by强调引起困惑的直接原因。
I was perplexed by his sudden silence.
我被他突然的沉默搞糊涂了。
困惑的；不知所措的
复杂的；难办的；迷惑的；充满困难、困惑或迷茫
confused or bewildered; unable to understand something
困惑的
Confused or puzzled.
迷惑的
Bewildered.
充满困难、困惑或迷茫
full of difficulty or confusion or bewilderment
She looked perplexed when the teacher asked her a question she hadn't prepared for.
当老师问了一个她没有准备的问题时，她看上去很困惑。
用法提示：这里用形容词 perplexed 作表语，描述主语感到困惑的状态。
AI contextual example
The instructions were so confusing that everyone in the room felt perplexed.
说明太混乱了，房间里每个人都感到不知所措。
用法提示：perplexed 作表语，表示因事情难以理解而不知所措。
AI contextual example
He stood at the crossroads, perplexed by the two equally long routes.
他站在十字路口，对两条同样长的路线感到困惑。
用法提示：perplexed 后接 by 短语，说明使人困惑的原因。
AI contextual example
by强调引起困惑的直接原因。
I was perplexed by his sudden silence.
我被他突然的沉默搞糊涂了。
at多表示对具体事件或行为感到困惑。
She was perplexed at the unexpected result.
她对这意外的结果感到困惑。
about常用于对较宽泛的主题或问题感到困惑。
Many students are perplexed about the new policy.
许多学生对这项新政策感到困惑。
grammar · medium
易错句子He perplexed about the result.
正确表达He is perplexed about the result.
缺少系动词：perplexed是形容词而非动词原形，作表语时必须与系动词连用。
grammar · medium
易错句子She was perplexed with the instructions.
正确表达She was perplexed by the instructions.
介词误用：表示“因…而困惑”时，应用by/at/about，而非with。
perplexed 更强调因复杂或矛盾而困惑，confused 更通用，可能由信息混乱引起。
perplexed 强调无法理解，bewildered 强调突然不知所措，程度可能更深。
perplexed 暗示更持久的困惑，puzzled 指暂时性的需要思考的困惑。
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