楼下的嘈杂渐渐平息了，林风靠在诊所的玻璃门上，看着外面街道上匆匆的人群。 Initialed in a nursing home in the town where he was born, the work did not match his talents, and the salary was low. He quit his job, came to this big city, and opened a small clinic, but he didn't expect it to be like this.

The phone in his pocket rang suddenly. Lin Wind took it out and saw a familiar number. He hesitated for a moment, then decided to answer it. "Hello," he said softly.

"Doctor Lin, are you there?" The voice on the phone was full of apologies. It was an old customer named Li Hua. He had a bad stomachache last night and tried Lin Wind's number, but he didn't answer the phone.

"Is it serious?" Lin Wind asked.

"It's not serious, but I'm still a bit scared," Li Hua said. "I ate something wrong yesterday and it hasn't been feeling well all day. I was thinking that if I got sick, I would go to see you, but you didn't answer the phone."

"I'm sorry, I was out," Lin Wind said. "What are you doing now?"