数量庞大的敌军很快压倒了我们的防线。

The huge enemy forces quickly ___overwhelmed our defenses.

当他看到自己获得一等奖时，喜悦之情溢于言表。

He was ___overwhelmed with happiness when he saw he won first prize.

老师布置了太多作业，学生们都被压垮了。

The students were ___overwhelmed by the amount of homework the teacher assigned.