noun 下载 🔗分享 劳丹脂,岩蔷薇树脂 A sticky brown resin obtained from species of rockrose, used mainly in perfume. Examples : "The expensive perfume had a deep, complex scent, partly due to the addition of labdanum. " 这款昂贵的香水气味深沉而复杂,部分原因在于添加了劳丹脂(岩蔷薇树脂)。 substance material chemistry plant 与AI对话词汇游戏阅读练习