Summary: National park ranger is not a usual occupation for an international student from China. How did Ma Yan become one? What challenges did he face? (澳大利亚自然资源丰富，有许多国家公园。可是公园工作人员却鲜有华人的身影。听马炎说说他是怎样从一名中国来的小留学生，成为澳洲国家公园的守护人。)
Summary: National park ranger is not a usual occupation for an international student from China. How did Ma Yan become one? What challenges did he face? (澳大利亚自然资源丰富，有许多国家公园。可是公园工作人员却鲜有华人的身影。听马炎说说他是怎样从一名中国来的小留学生，成为澳洲国家公园的守护人。)
