Second, there will be a suboptimal response to the challenge of educating the young and caring for the elderly, so that both the working population and the elderly are unhappy.

第二，对正在受教育的青年和需要照顾的老人的难题会有不良反应，这最终会导致工作的人群和老年人都感到不幸福。

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An optimistic response to a new challenge will trigger a completely different set of established response patterns.

乐观应对新的挑战将会和按照前面的既定模式面对挑战产生完全不同结果。

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Other messages generate a special challenge response to the sender.

其它消息会产生一个特殊的质询(challenge)响应给发送者。

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One response to this challenge is to point out that what really matters is the value over time, something especially relevant to the consideration of new technologies.

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In response to this challenge, London and New York City have endorsed ambitious long-term energy planning policies.

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And this, in turn, was the response to a challenge from heads of government to come up with an early timetable for joining forces.

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