相关单词近義詞 plummet 鉛鎚, drop 落下, fall 落下, plunge 使投入, dive 潛水, tumble 暴跌, decrease 減少, deteriorate 惡化, slump 大幅度下跌, crash 撞擊, rocket 火箭臨近詞nose, nosegas 返回 nose-diver