求翻译：复旦大学学生去黄山探险遇险，报警求救。相关部门派出救援队伍前往营救，历尽艰辛救出了学生，但有一位民警不幸牺牲。是什么意思？

Huangshan Fudan students to explore distress, alarm for help. Related departments sent rescue teams to the rescue, rescued the students going through hardships, but one police killed.

Fudan University students going to Huangshan adventure distress and report to the police for help. Relevant departments sent a rescue team to rescue and hardships rescued students, however, one civilian police unfortunately sacrifices.

Fudan University students go to Huangshan Mountain to explore to be in danger, report to the police pray for rescue.The related department sends out the rescue team to go to the rescue, went through many hardships has rescued the student, but had a police to die.

Fudan University students go to Huangshan the expedition rescued alarm calls. Authorities sent rescue teams to the rescue, rescued some pain in students, but one unfortunate expense of civilian police.

Huangshan Fudan students to explore distress, alarm for help. Related departments sent rescue teams to the rescue, rescued the students going through hardships, but one police killed.