Semicircular
a. 半圆的\\n[医] 半环形的
📖 牛津释义
semicircular
adj
having the shape of a semicircle 半圆形的.
🗣️ 情景例句
Yes, come on.
是的， 过来。
Fooling around
闲荡
It has to be tall because it is like a giant block and tackle,
井架必须很高，因为它像一个巨型滑轮组。