EMOTION 感情, if someone is overwhelmed by an emotion, they feel it so strongly that they cannot think clearly

〔感情上〕使〔某人〕感到不能自持，使不知所措:

Harriet was overwhelmed by a feeling of homesickness.

哈丽雅特陷入了深深的思乡情绪之中。

The children were overwhelmed with excitement.

孩子们激动万分。

Grief overwhelmed me.

我不胜悲伤。

TOO MUCH 太多, if work or a problem overwhelms someone, it is too much or too difficult to deal with

〔问题等〕使不可解决，使应接不暇，压垮:

We were overwhelmed by the number of applications.

申请书多得让我们应接不暇。

They would be overwhelmed with paperwork.

这些文书工作将使他们穷于应付。

SURPRISE SB 使某人惊讶, to surprise someone very much, so that they do not know how to react

使〔某人〕非常惊讶:

I was completely overwhelmed by his generosity.

他的慷慨使我惊讶万分。

We were overwhelmed by the sheer size of the place.

这地方的面积之大让我们非常惊讶。

DEFEAT SB 击败某人, to defeat an army completely

彻底击败，击溃〔军队〕:

In 1532 the Spaniards finally overwhelmed the armies of Peru.

1532 年，西班牙人最终打垮了秘鲁军队。

WATER 水, [literary] if water overwhelms an area of land, it covers it completely and suddenly

突然淹没〔某地〕