Knuckle under without a fight?

不抵抗就屈服？

He refused to knuckle under to the enemy.

他拒绝向敌人投降。

I won't knuckle under.

我不会屈服。

Even if times get tough, they don't knuckle under.

即使面临困难的时候，他们也不屈服。

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。

You can can fail successfully, also, you can not knuckle under but.

你可以胜利，也可以失败，但你不能屈服。

They're going to make us knuckle under and we may as well knuckle now as later.

他们会让我们屈服的，我们不如现在就屈服，何必等到将来呢？

Obama said that we didn't knuckle under, weasel from and hesitate when facing with challenges.

奥巴马说，在面临挑战的时候，我们没有屈服，我们没有逃避也没有犹豫。

Meanwhile, our most recent intake, the little dog, still refuses to knuckle under, conducting itself in a manner that runs counter to all stated regulations.

同时，我们最新招收的那位，一只小狗，仍然拒绝服从，他的行为方式就是违反一切已宣布的规矩。

I have also watched a lot of thing open anyway, not wanting to make an explanation because of that is very hypocritical, but silent has been not to represent knuckle under and tacitly approve that!

反正我也看开了许多东西，不想解释因为那很虚伪，但沉默是不代表屈服与默认的！

He would not knuckle down under their pressure.

他不会在他们的压力下屈服的。