plunging + noun
plunging 作形容词常修饰 neckline 等，表示低开或陡降。
She wore a dress with a plunging neckline.
她穿了一件低胸领口的裙子。
陡降的
跳进的，插入的；陡峭下降的；(火力)从高处俯射的；领口开得很低的；跳进的；突进往下的
falling steeply or sharply
价格、温度等急剧下降
陡峭下降的
That descends steeply.
(火力)从高处俯射的
Aimed from higher ground, as fire upon an enemy.
领口开得很低的
Very low-cut.
She chose a dress with a plunging neckline for the party.
她为派对选了一件低胸连衣裙。
用法提示：这里 'plunging' 作形容词，修饰 neckline，表示领口低垂。
The stock prices have been plunging since the announcement.
自公告发布以来，股票价格一直在暴跌。
用法提示：这里 'plunging' 是动词的现在分词，与 have been 构成现在完成进行时，表示持续下跌。
He went plunging into the cold river to save the child.
他纵身跳进冰冷的河里救孩子。
用法提示：这里 'plunging' 是现在分词，与 went 搭配表示突然而猛烈的动作。
plunging 作形容词常修饰 neckline 等，表示低开或陡降。
She wore a dress with a plunging neckline.
她穿了一件低胸领口的裙子。
表示价格、数量等急剧下降。
The stock market is plunging.
股市正在暴跌。
表示猛然进入或投入。
The diver is plunging into the water.
跳水者正跳入水中。
grammar · medium
易错句子The temperature is plunging down.
正确表达The temperature is plunging.
Plunging 本身已表示陡降，加上 down 造成语义重复。
grammar · medium
易错句子There was a sudden plunging in the stock market.
正确表达There was a sudden plunge in the stock market.
表示事件时应用名词形式 plunge，而不是现在分词 plunging。
plunging 强调猛力插入或突然下降的动作，plummeting 强调直线快速下跌（常指价格、数量）
plunging 可指向下猛冲或突然陷入，diving 特指头朝下跳入水中或空中俯冲
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