impavid

例句：

1. 1.The impavid is a rare and valuable gemstone.
   这个宝石是稀有而珍贵的。
2. 2. The impavid has been used in ancient civilizations for its healing properties.
   这种宝石在古代文明中被用来治疗疾病。
3. 3. The impavid was discovered by accident during a mineral exploration expedition.
   这种宝石是在一次矿物勘探探险中偶然发现的。