seat pin

例句：

1. 1.The car was parked in a spot with just enough room for the seats to be seated.
   这辆车停在一个座位足够容纳座椅的地方。
2. 2.The mechanic used a seat pin to hold the door open while he worked on the engine.
   机械师用一个座椅销钉来打开车门，以便他可以修理引擎。
3. 3. The driver had to use a seat pin to keep the door closed during the long trip.
   司机不得不使用座椅销钉来在长途旅行中保持车门关闭。