And academics are using sophisticated techniques to test whether popular medicines are safe.

学者们正使用精密的技术检测大众化的药物是否安全。

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Experts say China has lengthy and strict procedures to test whether ingredient are safe to use as additives.

专家称，中国检测作为食品添加剂的成分是否安全还有一个漫长和严格的过程。

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After that, the technicians test samples of all the milk to make sure it is safe and healthful.

这以后，技术人员就会把所有母乳取样检查以确保它们是安全健康的。

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The Administration also proposes to allow States to test strategies to overcome financial deterrents to forming safe and stable two-parent households and marriage in federal programs.

WHITEHOUSE: The White House

So far Mr. Romney's play-it-safe strategy has worked, but the next four months will be a harder test.

WSJ: Romney Plays It Safe

It is contained within the case of the rocket, into which is pumped a liquid oxidiser called high-test peroxide (HTP), a concentrated form of hydrogen peroxide which is relatively safe to handle.

ECONOMIST: The land-speed record