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1.someparentsarebusyatwork,theysometimehavetoleavetheirchildrenaloneathome.2.heisbusywithhisworkallday.请问两个句子中的busy,一个是busyatwork,另一个是busywithhiswork,busywith是忙于的意思,busyatwork

题目详情
1.some parents are busy at work, they sometime have to leave their children alone at home.
2.he is busy with his work all day.请问两个句子中的busy ,一个是busy at work,另一个是busy with his work ,busy with 是忙于的意思,busy at work是什么意思呢.两者能互换吗
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答案和解析
be busy at work;忙于工作 两者可以互换