grooved spring base

例句：

1. 1. Thenew car has a grooved spring basethat makes it easy to adjust the rideheight.
   这款新车有一个带槽的弹簧底座，使得调整骑行高度变得容易。
2. 2.The old bike had a grooved springbase that made it easier to pedal uphill.
   旧自行车有一个带槽的弹簧底座，使得上坡骑行更容易。
3. 3. Thenew tire has a grooved spring basethat helps absorb shock and improve handling.
   新轮胎有一个带槽的弹簧底座，有助于吸收冲击并提高操控性能。