Underprint
印在邮票图案下面的浅色底纹
🗣️ 情景例句
Michelle, can I help you with the lemonade?
Michelle，我帮你倒点柠檬汁好吗？
I'll get it.
我去接电话。
He turned on the light, but he couldn't see anyone. The thieves had already gone.
他开了灯，但不见一个人。小偷逃走了。