nephelium

例句：

1. 1.The nephelium is a rare and precious gemstone.
   这个珍珠是稀有而珍贵的宝石。
2. 2. The nephelium was discovered in the depths of the ocean.
   这个珍珠是在海洋深处发现的。
3. 3.The nephelium has been used for centuries as a symbol of wealth and power.
   这个珍珠自古以来就被用作财富和权力的象征。