To solve this problem, the two questions must be answered: what is the constraint that the nature resources and ecology environment put on the economic activity of human being?
要解决这个问题，两个问题必须得到回答。自然资源和生态环境到底给人类经济活动施加什么样的约束?。
To solve this problem, the two questions must be answered: what is the constraint that the nature resources and ecology environment put on the economic activity of human being?
要解决这个问题，两个问题必须得到回答。自然资源和生态环境到底给人类经济活动施加什么样的约束?。
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