Librations
(libration 的复数) n. 摆动, 天平动
🗣️ 情景例句
It must be interesting for you.
你对那一定很关心。
Do you like him?
你喜欢他？
easily obtainable from the lunar rocks in the form of liquid oxygen.
从月球上的岩石中很容易提炼出液态氧，