Instantaneous center(of rotation)
[化] (转动)瞬心
🧩 词语组成解析
🗣️ 情景例句
Yes. I do.
是的， 我有疑虑。
A man may talk like a wise man and yet act like a fool.
一个人可能说话像个聪明人，而行为像个大笨蛋。
I have pressing business to attend to.
我有紧急的事情要处理。