Vaccination is by now a simple, safe and effective way to protect us from the diseases.

到目前为止，接种疫苗是一种简单、安全并有效的方式，可以保护我们免受疾病侵害。

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This operation is simple, safe and effective way.

此术式是简单、安全和有效的方法。

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Designing systems that ensure they respond in a safe and effective way may take a decade or more.

给无人机设计一个能够确保它安全有效处理偶然因素的系统需要十年或更长时间。

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I'm in favor of -- there's no reason why technologically we can't employ nuclear energy in a safe and effective way.

WHITEHOUSE: President Obama Holds Town Hall in New Orleans

Fish oil and statins are a safe and effective way to improve cardiovascular health -- more so than the use of statins alone, he says.

CNN: How fish oil supports heart health

Exercising with weights is a "safe and effective" way to develop strength in people over 65, and can help them maintain an independent lifestyle, writes the team from a California veterans' medical center.

CNN: Bring the Barbells, Granny