e busy with sth：于某事 ；忙于某事 ；忙于
be very busy with sth：忙于做某事
be busy with sth
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相关问题
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be busy with sth 与be busy doing sth的区别
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be busy doing sth/with sth
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be busy doing sth和be busy with sth用法详细讲解
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是be busy doing sth 还是 be busy with doing sth
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be busy with sth.的应用
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忙与做某事be busy doing sth\with sth
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英语造句,每个造2句1.be busy with sth2.be busy doing sth3.help sb do
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bu busy with /on sth
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be busy with与be busy in
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be afraid of doing sth be busy doing sth be glad to do buy s