driven gear

例句：

1. 1. The new car has a powerful engine and a driven gear system that makes it easy to start.
   这款新车拥有强大的引擎和易于启动的驱动齿轮系统。
2. 2.The train had a large number of driven gears, which made it very fast.
   这列火车有大量驱动齿轮，因此跑得非常快。
3. 3. The old car's driven gear was worn out, so we had to replace it.
   那辆旧车驱动齿轮磨损了，所以我们不得不更换它。