surrender

The enemy troops were forced to surrender after they were completely surrounded by the allied army.

(Chinese) 敌军在被盟军完全包围后被迫投降。

He refused to surrender his principles, even when faced with heavy pressure from his peers.

(Chinese) 即使面临同伴的沉重压力，他也拒绝放弃（屈服于）自己的原则。