On the other hand, tourism has exerted great pressure on the environment we are living in: water is polluted, the ecological system is disturbed, and natural resources have been excessively used.
另一方面，旅游业已经对我们生存的环境造成了巨大的压力：水受到污染，生态平衡遭到破坏，自然资源被过度开发。
Water is essential to human survival and living as natural resources.
水资源是人类生存和生活必不可少的自然资源。
Water is the base of living things on Earth. Water extraction is important to the water resources investigation, the forecasting and evaluating of flood disaster and environmental monitoring.
水是地球上万物的命脉所在，水体提取对于水资源调查、洪水灾害预测评估和环境监测等有着重要作用。
Groundwater resource is an important constitution part of water resources, the function of which can't be replaced by others in the production and living of society.
地下水资源是水资源的重要组成部分，在人类社会生产生活中具有不可替代的作用。
Han ethnic ancestors living in the Yellow River Basin, semi-enclosed topography of the continent, rich in water resources, facilitate the growth of crops.
汉民族的祖先最早生活在黄河流域，半封闭的大陆地势，丰沛的水资源，便于农作物的生长。
Secondly, with the analysis on the living environment in rural areas, land resources, drinking water safety, solid waste pollution, the author reveals the environmental pollution hazards and causes.
其次，通过对农村居住环境、土地资源、饮用水安全问题、生活垃圾污染四方面现状的分析，揭示了当前农村人居环境污染的危害和原因。
Secondly, with the analysis on the living environment in rural areas, land resources, drinking water safety, solid waste pollution, the author reveals the environmental pollution hazards and causes.
其次，通过对农村居住环境、土地资源、饮用水安全问题、生活垃圾污染四方面现状的分析，揭示了当前农村人居环境污染的危害和原因。
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