observation
英 [?bz?'ve??(?)n]
美[,ɑbz?'ve??n]
- n. 觀察；監(jiān)視；觀察報告
詞組搭配
under observation
(especially of a patient or a suspected criminal) being closely and constantly watched or monitored
（尤指病人或嫌疑犯）在觀察中；在監(jiān)視中
he spent two nights in hospital under observation.
他在醫(yī)院里被觀察了兩夜。