The news plunged them into deep depression.

这条消息立即使他们深感沮丧。

She is in a state of deep depression.

她处于深深的沮丧状态中。

Grief-stricken, I fell into a deep depression.

我悲痛欲绝，陷入了深度抑郁。

This gives rise to loss of confidence and the onset of deep depression.

这会让你心生失望与深深的抑郁。

As you can imagine, much of our crew has fallen into a deep depression.

你可以想象，我们的船员很多人陷入了深深的沮丧。