ruby rod

例句：

1. 1.The ruby rod was used to hold the crystal together.
   红宝石棒用来固定水晶。
2. 2.The ruby rod was a symbol of wealth and power.
   红宝石棒是财富和权力的象征。
3. 3. The ruby rod was used as a weapon in battle.
   红宝石棒在战斗中被用作武器。