round head

例句：

1. 1. The round table is perfect for a group discussion.
   圆桌非常适合小组讨论。
2. 2. The child was playing with his round toy.
   孩子正在和他那个圆的玩具玩。
3. 3.The sphere was perfectly round and smooth.
   这个球体完美地圆滑无瑕。