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
How many words can you type per minute?
你一分钟能打多少字？
Second thoughts are best.
三思而行，再思可也。
There is a boat in the river.
河里有一条船。