gnash 过去式:gnashed 过去分词:gnashed 现在进行时:gnashing 词形变化: 动词过去式: gnashed | 动词过去分词: gnashed | 动词现在分词: gnashing | 动词第三人称单数: gnashes | 词义辨析: 同义: vt.咬, 啃, 嚼 crunch gnaw grind chew