(TTS發音) 1. watch 注視
The police keep all habitual criminals under observation from the day they leave the prison. 所有貫犯自出獄那天警察就密切注視他們。
2. watch or study attentively 注意觀察；研究
The doctor cannot understand Jane's stomach trouble，and he wants to keep her under observation for a few days. 大夫搞不清簡的胃有什麼毛病，于是想把她留在醫院裡觀察幾天。
