求翻译：当然，解决能源的问题是一个艰巨的任务。我们有理由对此感到审慎的乐观。人类的历史就是进步的历史。人类的文明或许有一天可以发展到能够解决我们所有能源的需要，但这并不意味着我们只需坐等这一天的到来。从现在开始全球都务必要做节能措施。是什么意思？

Of course , to solve the energy problem is a difficult task.

Of course, solutions to the energy problem is a very difficult task. We have reason to be cautious optimism. The history of mankind's progress in history. Human civilization might one day be able to solve all of our energy needs, but this does not mean that we simply sit and wait for the day. From n

Certainly, the solution energy question is an arduous duty.We have the reason to feel the careful optimism regarding this.Humanity's history is the progressive history.Humanity's civilization perhaps one day to be possible to develop can solve us to possess the energy the need, but this did not mean

Of course, solving energy problems is a difficult task. We have every reason to feel cautious optimism. Human history is the history of progress. Human civilization may one day be developed to be able to solve all of our energy needs, but that does not mean that we just had to wait for this day to c

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