plummet 过去式:plummeted 过去分词:plummeted 现在进行时:plummeting 词形变化: 动词过去式: plummeted | 动词过去分词: plummeted | 动词现在分词: plummeting | 动词第三人称单数: plummets | 词义辨析: 同义参见: swoop plunge descent