Sphericity
n. 球状, 球形
🗣️ 情景例句
Yes. I will.
好的。
You've no ideas how much work there is.
你想象不到工作量有多大。
I've been working so hard recently that I haven't had any time for collecting new stamps.
最近我的学习一直很紧张，没有时间收集新邮票。