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
my mother is running for the school board?
我母亲竞选联合校董会董事吗？
This professor has put all of his students to sleep except two.
这位教授使得除了两人以外的所有学生都入睡了。
On the road outside the school gate.
校门外的路上。