relapse

1. V-I If you say that someone relapses into a way of behaving that is undesirable, you mean that they start to behave in that way again. 复发

"I wish I did," said Phil Jordan, relapsing into his usual gloom. “我要是做了就好了，”菲尔•乔丹说着，回到平时的忧郁中。

2. N-COUNT Relapse is also a noun. 复发

...a relapse into the nationalism of the nineteenth century. …一个回到19世纪民族主义的倒退。

3. V-I If a sick person relapses, their health suddenly gets worse after it had been improving. (旧病) 复发

In 90 percent of cases the patient will relapse within six months. 90％的病人会在6个月内旧病复发。

4. N-VAR Relapse is also a noun. (旧病的) 复发

The treatment is usually given to women with a high risk of relapse after surgery. 该治疗通常用于术后复发可能性高的女性。