oroid

例句：

1. 1.The oroid is the center of gravity for this planet's rotation.
   这个星球的旋转中心是这个球体。
2. 2. The oroid is a popular tourist attraction in this region.
   这个地区的一个受欢迎的旅游景点。
3. 3. The oroid was used as a means of communication between different cultures.
   这个球体被用作不同文化之间的通信手段。