Mr. Shi adjusts his catheter with weather-beaten hands. The elderly man has to farm the fields and raise pigs, because he must support his mentally ill granddaughter at home.

• 石爷爷用饱受风霜的手调整导尿管，年岁已大的他，还必须下田务农养猪，因为家里还有一位患有精神疾病的孙女要扶养。