a voluntary experience(revised)

I once lived in Taipei, and worked as a volunteer in a hospital. It really felt good to get the opportunities to help people. One morning an elderly woman with a basket filled with fruit was seen by me standing in front of a room with her face looking tired. I knew the woman. She was strange because her legs were damaged but she still insists on walking upstairs. In the room lived a teenager.  In an accident, In order to help his grandmother, he had his legs broken. I walked up to her and asked her what I could do for her. She smiled exhaustedly at me and asked me to send the fruit to the teenagers, and then we heard some voice in the room. The teenager wanted to go out and was using the wheelchair. I want the teenager to thank this woman visiting him constantly. But, as soon as the voice was close to the door, the elderly woman left nervously with her legs lamely walking. The teenager opened the door and asked me to take a walk with him, we went downstairs with elevator. So, we missed the woman. It is pity that the teenager didn't meet the old women who came to visit him many times. The old women was really great. I'm glad that I could see the brightness in people's heart.