plummet

名词 plummet:

1. the metal bob of a plumb line
   同义词：plumb bob, plumb

动词 plummet:

1. drop sharply
   同义词：plump

1. Share price plummet or plunge on the news of the devaluation.
   一有贬值的消息，股票价格就暴跌了。
2. Pieces of rock plummeted down the mountainside to the ground below.
   岩石一块块顺著山的陡坡滚落到地面。
3. House prices have plummeted in this area.
   此地房价大跌。

plum.met

n.（名词）
A plumb bob.
铅锤
Something that weighs down or oppresses; a burden.
压抑物，压迫感：压下来或压迫的事物；负担
v.intr.（不及物动词）
plum.met.ed,plum.met.ing,plum.mets
To fall straight down; plunge.
垂直落下：垂直落下来；一头扎下
To decline suddenly and steeply:
骤降，爆跌：突然和大幅度地降低：
例句：
Stock prices plummeted.
股票价格暴跌

来源：
Middle English plomet
中古英语 plomet
from Old French [ball of lead] [diminutive of] plom, plomb [sounding lead]
源自 古法语 [铅球] [] plom, plomb的小后缀 [测深铅锤]
from Latin plumbum
源自 拉丁语 plumbum