它问世
It came into being
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Web正经历着它问世以来最重大的一次转变。
The Web is undergoing one of the greatest transformations since its inception.
youdao
它问世不到十年，研究者就发现石墨烯有极其良好的导热和导电性能。
Since its discovery less than a decade ago, researchers have learned that graphene conducts heat and electricity extremely well.
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