buckle under的用法和樣例：
例句
用作動詞 (v.)
- You shouldn't knuckle under all the time, your wife can't always be right.
你不要老是讓步，你妻子不可能總是對的。 - I don't see why I should have to buckle under every time he makes an unreasonable demand.
我不明白為什麼每次他提出不合理的要求時，我總是得讓步。 - He refused to buckle under pressure.
他決不屈服於壓力。 - His army never came under the yoke of invaders.
他的軍隊從來不向侵略者屈服。
