keep sb under observation

网络释义

1.	监视某人 keep sb in... ... keep sb. guessing 让某人吃不准 keep sb under observation 监视某人 keep sb away from 使某人远离 ... www.dic123.com
2.	相关词组英语语言... ... take an observation 测天;观测,观察相关词组: keep sb under observation 地面观测 ground-based observation ... zh-cn.w3dictionary.org

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