youdao

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The two teens worked together for their school's science fair.

这两个青少年一起为他们学校的科学展览工作。

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He also helps judge the yearly ninth grade science fair.

VOA: special.2010.07.16

President Obama will be directly involved in one aspect of the campaign a White House science fair that will showcase top student experiments from across the country.

VOA: standard.2009.11.24

Holy jeezus, are we talking about a baseball bat or a science fair display?

FORBES: Little League Extends Ban on Most Composite Bats

And, after all, the science fair projects of today could become the products and businesses of tomorrow.

WHITEHOUSE: President Obama Speaks at the 2013 White House Science Fair

Thomas will now present his Jurassic Coast research project at the International Science Fair in San Jose, California.

UNESCO: UK National Commission for UNESCO :: Jurassic Coast student named UK Young Scientist of the Year 2010