[countable] a decrease in size, number, rate or level
（规模）缩小；（数量）减少；（比率、水平）降低◆The firm announced a five per-cent-fall in profits.
公司宣布利润下降了 5%。◆a dramatic fall in unemployment
失业人数急剧减少⨁a big / dramatic / sharp / slight / steep fall (in sth)
大跌；暴跌；剧跌；微跌；猛跌 ●sb's ˌfall from ˈgracea situation in which a person or a company becomes less popular and successful, especially after doing sth wrong and losing people's trust
（某人威信的）骤降◆The company suffered a dramatic fall from grace and most of its directors were replaced.
公司名誉扫地，大部分董事被替换了。  ➡  idiom at ride verb free fall