正当全世界需要更多医疗志愿者时，提供服务的代价却骤然攀升。

Just when the world needed more medical volunteers, the price of serving soared.

youdao

正当全世界需要更多医疗志愿者时，提供服务的代价却骤然攀升。

Just when the world needed more medical volunteers, the price of serving soared.

youdao