nyxis

例句：

1. 1. The nyxis is a rare and valuable gemstone.
   这个尼亚斯是稀有且珍贵的宝石。
2. 2. The nyxis has been used in ancient jewelry for centuries.
   尼亚斯在古代珠宝中被使用了几个世纪。
3. 3. The nyxis was discovered in the Amazon rainforest, where it is still mined today.
   尼亚斯是在亚马逊雨林中发现的，至今仍在开采。