circumcrescent cake-like scrotum

例句：

1. 1. Themoon is a perfect example of acircumcrescent object.
   月亮是一个完美的环形物体的例子。
2. 2. The cake was circumcrescent in shape, making iteasy to cut.
   这个蛋糕的形状是环形的，所以很容易切。
3. 3. Thesun is a circumcrescent ball that orbits around the Earth.
   太阳是一个环形的球体，围绕地球运行。