底座

例句：

1. 1. The computer is placed on a sturdy desk for easy access.
   这台电脑放在一个稳固的桌子上，便于使用。
2. 2. The chair has a comfortable seat and a sturdy base.
   椅子有一个舒适的座位和一个坚固的底座。
3. 3. The table has a flat base that can support heavy objects.
   桌子有一个平坦的底座，可以支撑重物。