The decline of play is a special hazard for the roughly 1 in 5 children in the United States who live in poverty.

对于美国约五分之一的贫困儿童来说，玩耍的减少是很严重的危害。

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The Federal Emergency Management Agency (FEMA) publishes maps that designate Special Flood Hazard Areas delineated by a Base Flood Elevation (BFE).

美国联邦应急管理署（FEMA）发布了一张用“洪峰基线海拔”（BFE）描绘洪涝频发重灾区轮廓的地图。

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This approach to hazard identification does not require that someone with special training conduct it.

这种危险辨识的方法不需要经过特需训练的人来执行。

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This may sound creepy to some, but it opens the door to mobile devices providing users with highly personalized benefits, from a special offer on a package you are looking at to a warning of a hazard on the road ahead.

FORBES: Why Sensors Are a Force of Context