They are keeping back the names of the victims.

他们扣压着受害者的名单。

The prisoner was keeping back vital information.

该囚犯有重要消息不肯吐露。

Conclusions This is an epidemic situation of TB outbreak at school . which caused by the infectious case keeping back the truth of suffering from TB and attending school simultaneity.

结论这是一起由传染性肺结核学生隐瞒病情长期在校上学引发的学校结核病疫情暴发。