动词短语
中文翻译：仔细考虑
同义词：
['think about', 'ponderover', 'consider deeply']
例句：
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1. I'm puzzled by thesudden change in plans.
我对计划的突然改变感到困惑。
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2. She spent hours puzzledover her math problem.
她花了很多小时仔细思考她的数学问题。
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3. Thedetective was left puzzledby the evidence.
侦探对证据感到困惑。