slump /slʌmp/I. n.［c］ 暴跌；下降；消沉: the bad slump in business商业严重萧条；bring about a heavy slump in price引起物价大暴跌；an economic slump 经济疲软The airline industry is currently in a slump.近来航空业不振。‖II.vi.（物价等）暴跌，衰退；颓然倒下：Car sales have slumped dramatically/badly over the past year. 过去的几年汽车销售急剧下滑。
