Backstraps
n. 书背，书脊；(靴子或鞋后跟上的)提带
🗣️ 情景例句
He seems to be getting on very well at school.
他在学校似乎过得很好。
You cannot sell the cow and sup the milk.
你不可能出售乳牛，同时又要喝牛奶。
Is this your first visit to our showroom.
您是第一次到我们展示室来的吧。