calamus oil

例句：

1. 1. The scent of calamus oil is a pleasant surprise in the garden.
   花园里，香胶油的香味是一个愉快的惊喜。
2. 2. The aroma of calamus oil has been used for centuries as a natural remedy.
   香胶油的香气被用作几个世纪以来的自然疗法。
3. 3.In ancient times, calamus oil was often used to treat skin conditions.
   在古代，香胶油常常被用来治疗皮肤疾病。