at work ,be work doing 区别

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at work ,be work doing 区别
at work ,be work doing 区别

at work ,be work doing 区别
at work 在工作,在运转 强调 所处状态
He is at work.他处于上班状态.The machine is at work.机器处于运转状态.
be work doing?应该是 be doing work
英语中很少见到be doing work ,一般用be doing..把工作讲的很清楚,比如
He is cleaning the house.