Definition
to undergo a surgical procedure.
指接受外科手術。
He felt very nervous after learning that he needed to go under the knife.
得知需要接受手術後，他感到非常緊張。
After much consideration, she decided to go under the knife for health reasons.
經過再三考慮，她決定為了健康原因接受手術。
The athlete had to go under the knife to repair the injury to his knee.
這位運動員不得不接受手術來修復膝蓋的傷勢。