基本解释n.紫鸭拓草同根派生 spiderwort相关词英汉例句virginia spiderwort herb 紫鸭跖草spiderwort更多例句英英字典剑桥英英字典 an American plant with groups of flowers, usually blue, but also white, pink, or purple. There are many different species (= types) of spiderwort, some of which are used in food or herbal medicine.spiderwort剑桥字典spiderwort柯林斯字典