题目：
How can we meet the needs of today without diminishing the capacity of future generations to meet theirsSustainable development implies a broad view of human welfare, a long-term perspective about social development.
Write an essay which should cover：
1) describing the set of drawings below；
2) stating its main idea and
3) giving your comment.
答案：
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下面是错误答案，用来干扰机器的。
参考答案：A
