她正在接受治疗以应对长期困扰她的抑郁症。

She is undergoing therapy to cope with the ___depression that have been troubling her for a long time.

经济萧条导致许多公司倒闭。

Many companies went bankrupt during the ___depression.

草坪上有几处小凹坑，是孩子们玩耍时留下的。

There are several small ___depressions on the lawn left by the kids playing.

气象图显示一个低压槽正在向东部移动。

The weather map shows a ___depression moving towards the east.