wheel undercarriage

例句：

1. 1. The new car has a wheel undercarriage that can be adjusted to fit different terrains.
   这款新车的车轮下支撑装置可以调整以适应不同的地形。
2. 2. The engineer had to modify the wheel undercarriage to accommodate the larger tires.
   工程师不得不修改轮式起落架以适应更大的轮胎。
3. 3.The pilot was forced to land on the runway with only one wheel undercarriage.
   飞行员被迫在跑道上仅用一个轮式起落架着陆。