柯林斯词典evening primrose (evening primroses) 1. N-VAR Evening primrose is a tall plant with yellow flowers that open in the evening. Its seeds are used to make medicine. 月見草; 夜來香 返回 evening primrose剑桥词典a plant with pale yellow flowers . Its seeds are used to make an oil that is used to treat various medical conditions . 夜來香 evening primrose oil 夜來香油 返回 evening primrose