plummet
US /ˈplʌm.ɪt/
UK /ˈplʌm.ɪt/

1.
骤降, 暴跌
fall or drop straight down at high speed
:
•
The plane plummeted to the ground after engine failure.
飞机引擎故障后骤降到地面。
•
The stone plummeted into the deep well.
石头坠入深井。
骤降, 暴跌
fall or drop straight down at high speed