ratoon 名词复数:ratoons 过去式:ratooned 过去分词:ratooned 现在进行时:ratooning 第三人称单数:ratoons 词形变化: 动词过去式: ratooned | 动词过去分词: ratooned | 动词现在分词: ratooning | 动词第三人称单数: ratoons |