oscitron

例句：

1. 1.The ruby in the necklace is a rare and valuable gem.
   项链上的红宝石是一种稀有而珍贵的宝石。
2. 2. She wore a garnet ring on her left hand.
   她左手戴着一个绿松石戒指。
3. 3.The ruby was set into the center of the ring.
   红宝石被镶嵌在戒指的中心。