He was sinking into the Slough of Despond.

他那时正陷入极度沮丧的状态。

《牛津词典》

She and her husband, who still has work as a machinist, were sinking into debt.

她和仍担任机械师的丈夫，开始陷入债务。

youdao

The brain hemispheres take turns sinking into the sleep stage characterized by slow brain waves.

大脑半球轮流进入以慢脑波为特征的睡眠阶段。

youdao

There they stood, stiletto heels sinking into the lawn, and were treated to an eloquent, gracious speech.

ECONOMIST: The defeated candidate outclassed his supporters

"France, " she said, "is sinking into an absurd policy of endless austerity because it is always about saying yes to Brussels".

BBC: Europe and the anti-establishment vote

Ladies' Day usually means an excuse to dress up, wear large hats and worry about your heels sinking into the mud.

BBC: Ladies' Day at Westminster