1、She fell while toddling around.
她在蹒跚学步时摔倒了。
2、David rang up while you were out.
你不在的时候戴维打电话来了。
3、Keep still while I brush your hair.
我给你梳头时你不要动。
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4、They met while on holiday in Greece.
他们是在希腊度假时认识的。
5、Carry on with your work while Im away.
我不在时你要接着干。
6、I waited while he gathered up his papers.
他整理文件时我就在一旁等待。
7、They palled up while they were at college.
他们上大学时成了朋友。
