有语法错误 ,正确形式为they can exercise when they are at work 或 they can exercise when they are working
意思是 他们在工作的时候能得到锻炼
they can exercise when they are work这句话是什么意思咧?
they can exercise when they are work这句话是什么意思咧?
英语人气：339 ℃时间：2020-01-24 08:50:53
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