柯林斯词典aster /ˈæstə/ 1. N any plant of the genus Aster, having white, blue, purple, or pink daisy-like flowers: family Asteraceae (composites) 紫菀属植物→compare golden aster 返回 aster剑桥词典a garden flower that is usually pink or purple , with many long , thin petals 紫苑花 返回 aster