In order to prevent such tragedy from happening again, we students should avoid buying food from the stores or stalls out of the school.

为了防止这种悲剧再次发生，我们作为学生应尽量避免从学校外的商店或摊位购买食物。

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For the time being, though, signs are that the policies that Beijing has pursued to avoid overheating and prevent a hard landing are working.

不过，目前显示出来的迹象是北京避免经济过热、防范硬着陆的政策开始奏效。

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Going to the dentist, having your eyes tested and trying to avoid coughs and colds could help prevent dementia, claim scientists.

科学家指出，看牙医、检查眼睛、尽量避免咳嗽和感冒可预防痴呆。

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It may sound esoteric, but he hopes that understanding the conditions needed for particular sorts of flake to form will enable meteorologists to give out accurate warnings of air-pockets that pilots should avoid in order to prevent their aircraft icing up.

ECONOMIST: Atmospheric science

He defended his support for the bill, saying it was the only way to avoid sweeping tax increases and prevent the economy from going into a free-fall.

NPR: Ryan Says GOP Need To Pick Its Fights With Obama

Just in the U.S., driverless technologies could save tens of thousands of lives, prevent hundreds of thousands of injuries and avoid hundreds of billions of dollars in accident-related losses each year.

FORBES: Driverless Cars -- Trillions Are Up For Grabs