Astrodynamics
n. 天文动力学, 宇宙飞行力学
🗣️ 情景例句
We can't get this bow tie tied.
我们打不好领结。
I don't believe he will get to the station on time.
我不相信他会准时到车站。
' But they don't realize one important thing.
”然而他们没有认识到重要的一点，