1. suppress 控制;壓制
The old man kept his feelings under for too long. 老人長期以來抑制住自己的感情。
The firemen battled against the flames for several hours before keeping them under. 消防隊員跟大火搏鬥了幾個小時才把火勢控制住。
2. hold in subjection;repress;hold back使處于被統治地位;征服;約束
Kept under for several centuries,the people of this country finally achieved independence. 這個國家的人民受奴役壓迫了幾個世紀,最後終于獲得了獨立。
You won't keep her under for much longer. 你約束不了她多久了。
3. maintain in a state of unconsciousness or strong sedation處于昏迷或強鎮靜麻醉狀態
The poor man's pain was so intense that he was kept under by means of regular injections of morphine. 那個可憐的老人疼得非常厲害,要用打嗎啡針的辦法才能使他鎮靜下來。
Throughout the operation,he was kept under by acupunctural anaesthesia. 他在開刀時,一直是用針刺麻醉的。
4. keep observing;maintain a constant watch持續觀察;密切監視
The plainclothes officers were told to keep the suspected man under constant observation. 便衣警察受命密切監視那個有嫌疑的人。