be busy (in) doing something 与be busy with something的用法重点是它们各自的用法和各自强调的是什么?

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bebusy(in)doingsomething与bebusywithsomething的用法重点是它们各自的用法和各自强调的是什么?bebusy(in)doingsomething与bebusywi

be busy (in) doing something 与be busy with something的用法重点是它们各自的用法和各自强调的是什么?
be busy (in) doing something 与be busy with something的用法
重点是它们各自的用法和各自强调的是什么?

be busy (in) doing something 与be busy with something的用法重点是它们各自的用法和各自强调的是什么?
busy oneself with 忙于 busy oneself about 忙于 busy oneself in 忙于 get busy [美口] 干起来,开始工作[奔走,活动] keep sb.busy 不让某人空闲,使某人有事做