Backstrap
n. 对接贴板；后带；脊框；背带
🗣️ 情景例句
In North America when people meet each other for the first time.
在北美，当人们第一次彼此见面时。
In college I majored in philosophy, What was your major?
大学时我主修哲学，你主修什么呢？
I suddenly pressed the brake pedal and we were both thrown forward.
我突然用力踩紧刹车踏板，结果我俩的身体都向前冲去。