slot space-factor

例句：

1. 1. The machine has a slot for thepower cord.
   这台机器有一个插电源线的槽。
2. 2. The car has a slot forthe sun visor.
   这辆车有一个遮阳板槽。
3. 3. The book has a slotfor notes and drawings.
   这本书有一个记笔记和绘图的槽。