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最可持续的皮革是使用寿命最长的皮革,减少了频繁更换的需求。
我们所知的物理定律可能只是更大定律集合中的一小部分。
The most exciting discoveries are those that challenge our assumptions.
That “democracy” is a somewhat vague term which I cannot define precisely. We ought to say, therefore: “I am fairly certain that it is a good thing if a government has something of the characteristics that are common to the British and American Constitutions,” or something of this sort.