decline是下降的意思,而 recession则是衰退的意思,区别可以从以下例子看出:
Due to COVID-19 pendamic, government lock down Melbourne for 6 time, economy activities are declined, and expert concerns about the recession might coming. 由于 COVID-19 大流行,***封锁墨尔本 6 次,经济活动下降,专家担心经济衰退可能来临。