Parachuting
跳伞运动
🗣️ 情景例句
Come on, Philip!
快点， Philip。
A match will set fire to a large building.
星星之火，可以燎原。
The study of custom can be profitable only after certain preliminary propositions have been accepted,
只有在某些基本的主张被接受下来、同时有些主张被激烈反对时，