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欧米惠必应词典

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R 开头单词

柯林斯词典

    read up on (reading,reads)

  • 1. PHRASAL VERB If you read up on a subject, you read a lot about it so that you become informed about it. 钻研; 熟读

    I've read up on the dangers of all these drugs. 我已熟知所有这些药物的危险之处。

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