You see, my way of thinking is very simple: to understand the world first, then life!

我的思路很简单。先了解世界，再了解生活！

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The World Wide Web first began in 1990.

万维网首次出现在1990年。

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The first World War broke out in 1914.

第一次世界大战于1914年爆发。

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But close to five hundred million confirmed cases were reported to the World Health Organization as of November first.

VOA: special.2009.11.24

Bohr and Einstein were considered the top two physicists in the world through the first part of the 20th century.

波尔和爱因斯塔被认为,是世界上顶尖的两个物理学家,在整个20世纪前页。

麻省理工公开课 - 固态化学导论课程节选

Yeats is obviously writing in the context of an Irish civil war, but it's also the case that he's writing in the shadow of the First World War as well.

叶芝显然是在爱尔兰国内战争时期进行创作的，但是同时他也是在,一战的阴影下写的。

耶鲁公开课 - 现代诗歌课程节选

In the 30 years since the world first became aware of AIDS, a lot has changed.

WHITEHOUSE: The 30-Year Anniversary of the Aids Pandemic: What Has Changed, What Needs To Change | The White House

Some global travelers may have seen enough of the world first-hand to satisfy their curiosity for a lifetime.

FORBES: Love, Sex and Your Smartphone

QUIST-ARCTON: Can you name the Ancient Seven Wonders of the World first, Farai?

NPR: West African Drug Trade, War of Words in Sudan