问题描述：
英语翻译
Sugar is so much a part of our modern life that we only really think about it when,for some reason,we cannot get it.It has been known to man for at least 3 ,000 years,but has come into common use only in modern times.
Sugar is so much a part of our modern life that we only really think about it when,for some reason,we cannot get it.It has been known to man for at least 3 ,000 years,but has come into common use only in modern times.
问题解答：
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