"Keep silence" 是 "保持沉默" 的直译短语。
来源：这个短语源自英语中 "keep" 和 "silence" 两个单词的结合，"keep" 意为 "保持"，"silence" 意为 "沉默"。
例句：
Keep silence during the exam. (考试期间保持沉默)
We were asked to keep silence during the meeting. (我们被要求在会议上保持沉默)
The pbrarian shushed the noisy students and told them to keep silence. (图书管理员让嘈杂的学生安静并告诉他们保持沉默)