n.鉛錘；鉛垂線
vi.垂直落下；暴跌
Just watch your electricity bills plummet! 您的電費帳單將直線下降!
House prices have plummeted in this area. 此地房價大跌。
Our economy would plummet into the abyss of national economic ruin. 我們的經(jīng)濟將會陷入全面崩潰的深淵。
