Backstand
张紧座; 后座; 支撑结构
🗣️ 情景例句
How often do you go running?
你多久跑步锻炼一次？
Don't cross the bridge till you get to it.
不要杞人忧天。
What's Ron Marston like,Pauline?
波淋，朗。马顿是怎样一个人？