ph.
1. The manager drove the workers hard, but they never knuckled under.
经理对工人很苛刻，但是他们从不屈服。
1. 屈服：knuckle down 屈服 | knuckle under 屈服 | knuckle 指节
2. 让步;屈服：fly in the face of:直接违反 | knuckle under:让步;屈服 | poke around v.闲逛,没有计划的寻找
3. 服软：福分 good fortune; happy lot | 服软 admit defeat; ask pardon; knuckle under; compromise | 富姐 a rich woman
1. 屈服；认输
If you knuckle under, you do what someone else tells you to do or what a situation forces you to do, because you realize that you have no choice.
e.g. It is arguable whether the rebels will knuckle under...
还不能确定反叛者是否会投降。
e.g. The United States, he said, did not knuckle under to demands.
他说，美国不会屈从于他人的要求。