对食品与药品管理局来说，在药品得到批准之前确定它们对人体有何种影响非常重要，但又要在安全允许的范围内让程序加快；许多生命依赖于这一程序。

It was important for the FDA to determine how drugs would affect the body before they were approved, but the process should be as speedy as safety permitted; lives were riding on it.

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绿色食品——这一词的用法非常不统一——支持者往往声称绿色食品比其它食品更安全，营养价值更高。

Advocates of organic foods — a term whose meaning varies greatly — frequently proclaim that such products are safer and more nutritious than others.

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相对于不排放气体保证不了容器安全的风险而言，这一程序所带来的后果是非常轻微的。

This procedure is justified as its consequences are very low, especially when compared to the potential consequences of not venting and risking the containment structures' integrity.

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Engineers who are developing new materials, materials that can be, if you think about it, there's not very many things that you would want to put in your eye and you'll feel comportable to put in your eye so this is a very safe, a very inert material.

工程师们不断研制新的材料,这些材料应该是,想想吧,能让你们敢于,放到眼睛里的,并令人感到舒适的材料并不多,这应该是一种非常安全非常稳定的材料

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