C111 Don't Know How High the Sky Is and How Deep the Earth Is

The middle-aged man's reaction was quite fast. Just as the old man fell to the ground, he quickly grabbed him and hugged him.

"Old man, what's wrong?" he asked urgently.

He called out a few times, but the old man didn't have the slightest reaction. He couldn't help but look at the crowd and loudly said, "Quick, help me call a doctor