更新时间：2024-05-20 17:24:56
名词 free fall:- the ideal falling motion of something subject only to a gravitational field
- a sudden sharp decrease in some quantity
free-fall是什么意思 free-fall在线翻译 free-fall什么意思 free-fall的意思 free-fall的翻译 free-fall的解释 free-fall的发音 free-fall的同义词
