起落架

例句：

1. 1. The plane's landing gear folds down for easy transport.
   飞机的起落架折叠起来便于运输。
2. 2. The car's front wheel is the main landing gear.
   车的前轮是主要的起落架。
3. 3. The pilot had to land the aircraft in a remote area.
   飞行员不得不在偏远地区降落飞机。