threshold 名词复数:thresholds 词形变化: 动词过去式: threshed | 动词过去分词: threshed | 动词现在分词: threshing | 动词第三人称单数: threshes | 词义辨析: 同义: n.门槛; 入口 doorway portal gateway 同义参见: brink eve opening