Toroid
[计] 环形线, 环
🏥 医学释义
环，环形线，复曲面，螺旋管
🗣️ 情景例句
It's going to be a piece of cake.
这种事不费吹灰之力。
Grain by grain,and the hen fills her belly.
一颗接一颗，母鸡填饱肚。
Can you read that.
看得清楚吗？