When they were about to eat enough, Yang Ming suddenly found Liu Ping wrinkled his eyebrows and asked, "Liu Ping, what's wrong with you?"

"No, nothing..." Liu Ping stammered.

"What the hell is going on?"

"Really nothing?"

At this time, Yang Ming called the waiter to check out. The waiter took the bill and said with a smile, "Hello, sir, you spend 70 yuan altogether."

Yang Ming took out a hundred-dollar bill and handed it over. The waiter said, "Wait a minute, I'll find you the money." Then he left.

At this time, one saw Liu Ping frown again and stood up. Yang Ming went to Liu Ping and asked...