Slump /slʌmp/ v./n. (价格、价值或销售额)猛跌,突然下降
meaning: (of prices, values, or sales) to fall suddenly; a fall in the price, value, sales etc. of something
1) 联想:sl--slow 缓慢的
2) 联想:ump--dump 倾倒(dumpling)
e.g. There’s been a slump in the demand for new cars. 新车的需求量猛跌。