Yang Ming said with his stomach in his arms, "Sit down first. My stomach is uncomfortable. I'm going to the bathroom."

As Yang Ming said, he went into the bathroom and inserted the door inside. After Yang Ming entered the bathroom, the first thing he did was to look at the trash can in the bathroom.

He wanted to see if there were any sanitary napkins in it, but after reading it, he was disappointed. There was a black plastic bag in the trash can, which was empty.

Yang Ming was anxious to see that there was nothing in the trash can. He couldn't come in vain today, otherwise he...