Underprint
印在邮票图案下面的浅色底纹
🗣️ 情景例句
Canada has the most beautiful waterfalls in the world.
加拿大有世界上最壮观的瀑布。
I've got a pain in my back.
我的后背有点疼痛。
We are trying to collect money for a wildlife project.
我们正在设法募集资金搞一个野生动物项目。