农用地是一个十分复杂的自然、生态和社会复合体，是人类赖以生存的源泉。
Arable land is complicated systems that consist of nature, ecology, society, and it is the source to exist for mankind.
农用地是一个复杂的自然、生态和社会复合体；农用地的价值由农用地的自然质量价值和无形价值构成。
Arable land is complicated systems that consist of nature, ecology, society, and its value is composed of its natural quality value and invisible value.
批评人士担心，如此大规模的项目将会带来一系列的生态、环境和社会问题。
Critics feared that the massive project would create a string of ecological, environmental and social problems.
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