Freefall
a. 自由落体的\\nn. 自由降落式（跳伞）
✅ 同义词
🗣️ 情景例句
I can speak English as far as foreign languages are concerned.
就外语来说，我只会讲英语。
How is it going?
情况怎么样？
Spring is a pretty season，
春天是一个好季节。