The Regressive Cycle is used to describe a decline in performance (regression).

倒退循环用来描述部属工作表现的下跌(倒退)。

youdao

The results show that: Hunan Province in the past has made some achievements, but in recent years, a sharp decline in performance situation.

研究结果表明：湖南省在过去取得了一定的成绩，但是近年来，成绩出现了急剧下滑的局面。

youdao

Key symptoms include: disruptive behaviour, decline in performance at school, withdrawal from relationships, argumentative and bickering nature and lack of social skills.

主要症状包括：破坏性的行为，在学校的表现下降，从关系撤出，议论和争吵性质和社交能力不足。

youdao

The decline in performance was a result of decreased debit card spending as new regulations that govern the card network industry take effect.

FORBES: This Week in Credit Card News

In a statement last week, the IRS blamed a decline in some performance measures, including a drop in audit coverage and collections, on an 8% decline in its workforce since 2010, plus a doubling of the staff it has assigned to fight identity theft refund fraud.

FORBES: As IRS Tax Filing Season Begins, Bad News For Honest Taxpayers

In fact, the research showed an immediate decline in their performance if they switched employers.

ECONOMIST: Masters of the universe