Instantaneous center(of rotation)
[化] (转动)瞬心
🧩 词语组成解析
🗣️ 情景例句
Yes, ice cream.
对 ，冰淇淋。
I don't feel up to going to work today.
我今天不舒服，不能上班。
My wife and I were at the race.
我和我的妻子也去了。