1.dig in one's heel 拒不让步

例句:But, predictably, the talks are getting bogged down, as vested interests dig in their heels.
但意料之中的是，由于既得利益者寸步不让，谈判正陷入困境。

2.lose heart 泄气

例句:He appealed to his countrymen not to lose heart.
他呼吁自己的同胞不要丧失信心。

3.sooner or later 迟早

例句:Whoever did this will sooner or later be caught and will be punished.
不管是谁干的这事，早晚要被抓住并受到惩罚。

4.held out 伸出

例句:I should have held out for a better deal.
我应该坚持要求更优厚的条件的。