Future research will focus on figuring out how to break down the unhealthy byproducts that form in pools. Or better yet, prevent their formation.

今后的研究将关注于怎样去除游泳池里产生的毒副产品，或者更理想的是，阻止它们的形成。

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Increased UV light may break down water molecules in the upper atmosphere, reducing cloud formation, says James Russell of Hampton University in Virginia, who was not involved in the study.

美国维吉尼亚州汉普顿大学的詹姆斯·拉塞尔没有参与这次研究，他说，增加的紫外光可能会分解高层大气中的水分子。

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Readers will fly alongside the Vulcan for 20 minutes before the Blades break away for aerobatics and formation flying.

刀锋特技飞行队表演特技飞行和编队飞行后刀锋特技飞行队飞行员将陪同读者与火神飞行20分钟。

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The break in price support (line a) completed the flag formation in February.

FORBES: 3 High-Yield Disasters

Villa changed their formation at the break but the game turned on the introduction of Heskey on 58 minutes, with the man that Houllier signed for Liverpool a decade ago making an instant impact.

BBC: Aston Villa 3-1 Blackburn

Stevenage's first-half performance forced a change of formation from Newcastle at the break, as they brought on Nile Ranger for Leon Best and switched to a 4-2-3-1 set-up.

BBC: Stevenage 3-1 Newcastle