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关于busy的词组最好有例句,解释清意思

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关于busy的词组最好有例句,解释清意思
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be busy at /with sth ;busy doing sth 忙于某事 eg .She's busy with her preparation for tha party . get busy着手干 eg.We'll have to get busy if we're going to be ready in time. be busy oneself with sth ...