Test coupon
[计] 附连试验板\\n[化] 试样
🧩 词语组成解析
coupon
['kupɑn]
n. 优惠券;息票，通票;试样，试件;配给券;
🗣️ 情景例句
He is in conference right now.
他现在在开会。
Discretion is the better part of valour.
小心即大勇。
It looks like we have problem with the shipment.
货有问题哦。