Trading stamps
[经] 商品券
🧩 词语组成解析
[经] 交易
n. 邮票；印记；图章（stamp的复数）
🗣️ 情景例句
Then an adult must sign for you.
那就必须有一位成年人来替你签字。
Honest men marry soon, wise men not at all.
诚实的人马上结婚，聪明的人就不这样。
What is it? asked the man.
“什么事？”楼上人问。