求翻译：如果说自然之友的成立，是中国民间知识分子开始觉醒和反思环境的危害，那么厦门PX事件，则标志着全体市民已经开始意识到环境威胁需要自己的抗争才能解决。是什么意思？

If the establishment of the Friends of Nature, is a Chinese folk intellectuals started to wake up and reflect on environmental hazards, then the the Xiamen px event marks the community as a whole have begun to realize the environmental threats need to struggle to resolve.

If we say that the establishment of the friends of nature, it is China's civil intellectuals started to wake up and rethink environmental hazards, and the Xiamen PX event, marks of all of the people have begun to realize the threat to the environment need to have their own struggles to resolve.

If we say that the establishment of the friends of nature, is a reflection on Chinese intellectuals begin to wake up and environmental hazards, the Xiamen PX, then mark the community as a whole has begun to realize that environmental threats requires its own protest can be resolved.