go under the knife

含义

to have a medical operation

接受手术.

例句

1. 1My uncle is going under the knife next week to fix his knee.
2. 2Priya was nervous about going under the knife, but the surgery went smoothly.
3. 3After years of back pain, Tom finally agreed to go under the knife.
4. 4The surgeon will explain the risks to you before you go under the knife.
5. 5Our cat has gone under the knife twice this year, so the vet bills are huge.

语法

只有 go 变化形式：went、gone。be under the knife 指正在做手术的时候。