circular revolving box loom

例句：

1. 1.The circle of light cast by the moon is beautiful.
   月亮投下的光圈很美丽。
2. 2.The car's engine is a circular motion.
   汽车发动机是一种圆周运动。
3. 3.The circle of friends we have formed is very tight.
   我们形成的朋友圈非常紧密。