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
She complained, with reason, that she had been underpaid.
她抱怨她的工资一直很低，这也不无道理。
Excuse me to have kept you waiting.
对不起让你就等了。
It is fairly clear that sleeping period must have some function,
很清楚，睡眠必然具有某种作用。