Semicircumference
n. 半圆周
🗣️ 情景例句
He did it in no time.
他马上做了那件事。
Action speak louder than words.
事实胜于雄辩。
Their sleeping bags were warm and comfortable, so they all slept soundly.
睡袋既暖和又舒服，所以，他们都睡得很香。