一个上添一个下靠

Since arriving in Shanghai, Lu Feng felt that he had saved many people, but the old man he met today was the most unpredictable. The old man always kept a faint smile on his face until the ambulance arrived. Lu Feng and Chen Rumei helped the nurses lift the old man onto the stretcher. Lu Feng suggested that he should follow him to the hospital, but the old man repeatedly refused....