短語(yǔ)詞組短語(yǔ)sudden n fall 突然落下sudden water level fall 水位驟降sudden fall into a swoon 卒然昏倒Sudden Rise And Sudden Fall 忽起忽落a sudden fall in temperature 氣候的驟降a dramatic and sudden fall 猛降;暴跌sudden rise and slow fall 陡陞緩降 返回 sudden fall