Definition: to gradually become less or worse Level: B2
这家公司的利润在过去几年持续下降。
The company's profits have been in ___decline for the past few years.
她的健康开始变差，这让家人很担心。
Her health is starting to ___decline, which worries her family.
上个季度的销售数据显示了显著下滑。
Sales figures have shown a significant ___decline over the last quarter.
