Recently, it is popular about bottomless brunch, which means brunch. Bottom literally means bottomless, which means you can't see the bottom of the cup, that is, the cup will not be empty, and it will be refilled indefinitely.

This reminds me that when I was in college, boys and girls often made an appointment at Pizza Hut because there was afternoon tea. At that time, afternoon tea was not just a gesture like the little red book now. We really ate them all. What we like is Pizza Hut afternoon tea with unlimited refills. We ordered a set meal, and we had to sit for an afternoon, and we had a veritable afternoon tea. Although merchants can refill their cups indefinitely, the stomach of eating goods is not really bottomless.