go under

US /ɡoʊ ˈʌndər/
UK /ɡoʊ ˈʌndər/
"go under" picture
1.

倒閉, 破產

to go bankrupt

:
Many small businesses go under during a recession.
許多小企業在經濟衰退期間倒閉
The company is expected to go under by the end of the year.
該公司預計將在年底前倒閉
2.

失去知覺, 睡著

to become unconscious or fall asleep, especially due to an anesthetic or exhaustion

:
The patient began to go under as the anesthesia took effect.
隨著麻醉藥生效,病人開始失去知覺
After a long day, he just wanted to go under and sleep.
漫長的一天過後,他只想睡著