oleo-

例句：

1. 1. The oleo- is a rare and precious gemstone.
   这个橄榄石是稀有而珍贵的宝石。
2. 2. The oleo- has been used in ancient civilizations for its healing properties.
   这个橄榄石在古代文明中被用于其治疗性质。
3. 3. The oleo- is often used as a decorative element in jewelry design.
   这个橄榄石经常被用作珠宝设计中的装饰元素。