Reaction propulsion
反作用力推进
🧩 词语组成解析
🗣️ 情景例句
That's very nice of you, but I really can't.
你太客气了，可我真的非走不可。
What we are ignorant of is immense.
我们不知道的东西多得不可胜数。
but as the oceans have been overfished, fish has become more and more expensive.
但是随着海洋里的滥捕滥捞，鱼已经变得越来越昂贵。