flat base rim

例句：

1. 1. The car's flat base rim made it easy to park in the tight space.
   汽车的平底边缘让在狭窄空间停车变得容易。
2. 2.The chef used a flat base rim to create a smooth surface for the cake.
   厨师使用平底边缘为蛋糕创造了平滑的表面。
3. 3.The flat base rim of the table was perfect for holding drinks and snacks.
   桌子的平底边缘非常适合放置饮料和小吃。