柯林斯词典peony /ˈpiːənɪ/ (peonies) 1. N-COUNT A peony is a medium-sized garden plant that has large round flowers, usually pink, red, or white. 牡丹; 芍药 返回 peony剑桥词典a garden plant with large red , pink , or white flowers 芍药；牡丹 返回 peony