The delayed Tokyo Olympics were promised to be an example of how to stage an ecologically and socially responsible mega-event, but historical evidence and current trends suggest this may not be possible.

中文翻译：

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步伐不可持续

延迟的东京奥运会被许诺为如何举办对生态和社会负责的大型活动的一个例子，但是历史证据和当前趋势表明这可能是不可能的。