rubidin

例句：

1. 1. The rubidin in the gemstone is so bright that it can be seen from a distance.
   这块宝石中的红宝石是如此明亮，以至于可以远距离看到。
2. 2.The rubidin was carefully polished to reveal its intricate patterns.
   这颗红宝石被仔细打磨，以显露出其复杂的图案。
3. 3.Rubidin jewelry is highly sought after for its beauty and rarity.
   红宝石首饰因其美丽和稀有而备受追捧。