Exradius
外径, 旁切圆直径
🗣️ 情景例句
What's the lowest you're willing to go?
最低你能出什么价？
I'm going shopping because I need to buy some clothes.
我要去购物，因为我需要买一些衣服。
Sometimes the yeast within a writer outlives a book he has written.
有时，一个作家一本书写完了，但兴奋仍不消散。