phrase
C2
a bad situation that keeps going because one problem makes another problem worse.
Many people find themselves in a vicious circle when stress leads to poor sleep, which then increases their stress.
许多人发现自己陷入一个恶性循环，压力导致睡眠不佳，而睡眠不佳又增加了他们的压力。
translation
恶性循环