he改为复数形式

　　they：pron.他们;她们;它们;用以代替he或she，指性别不详的人;(泛指)人们，人人，众人

　　例句：

　　Cars are checked as they come off the production line.

　　汽车下了生产线立即进行校验。

　　They agglomerated many small pieces of research into a single large study.

　　他们把许多小的研究课题汇集成一个大项目。

　　Phone them up and find out when they are coming.

　　给他们打个电话，问问他们什么时候来。

　　They questioned the accuracy of the information in the file.

　　他们怀疑档案中信息的正确性。