Instantaneous center(of rotation)
[化] (转动)瞬心
🧩 词语组成解析
🗣️ 情景例句
It is for me,
对我来说当然足够，
Life is not all beer and skittles.
人生并不全是吃喝玩乐。
Though a number of descents have been made, much of it still remains to be explored.
人们多次进入洞内探险，但至今尚有不少东西有待勘探。