half slot

例句：

1. 1.The half slot in the door is where you can insert a key to unlock it.
   门上的半插槽是插入钥匙来解锁的地方。
2. 2.The half slot on the side of the table is for storing small items like pens and pencils.
   桌子侧面的半插槽是用来存放笔和铅笔等小物品的地方。
3. 3. The half slot in the car door is designed to accommodate a phone or other electronic device.
   车门上的半插槽是为了容纳电话或其他电子设备而设计的。