Infimum
n. [数]下确界
🗣️ 情景例句
May I have your name and number, please?
请问你的姓名和电话号码？
My grandfather got married in 1921.
我的祖父在1921年结婚。
The geologist needs to know what rocks the drill has reached,
地质学家需要知道钻头已经到达什么样的岩层，