柯林斯词典thistle /ˈθɪsəl/ (thistles) 1. N-COUNT A thistle is a wild plant which has leaves with sharp points and purple flowers. 蓟 返回 thistle剑桥词典a wild plant with sharp points on the leaves and, typically , purple flowers 蓟（叶带尖刺，多开紫色花） The thistle is the national emblem of Scotland . 蓟是苏格兰的国花。 返回 thistle