Anti-doping officials say they want to protect the integrity of sports by guaranteeing what they call a level playing field.

VOA: special.2011.04.12

How do you engineer what happens in our immune system in order to protect us from diseases?

我们如何将免疫功能工程化,保护我们远离疾病

耶鲁公开课 - 生物医学工程探索课程节选

It's something like what we had in the '30s, although they have other institutions that protect homebuyers, so they don't see the turmoil that we saw in the 1930s.

就像我们上世纪30年代的一样,但是他们有另外的机构来保护购房者,因此他们没有经历我们在30年代的动荡

耶鲁公开课 - 金融市场课程节选

What laws protect me from genetic discrimination?

CNN: Lynch syndrome

This is a good time to find out what could derail your retirement and take measures to prevent big mistakes and protect what you have already done.

FORBES: 5 Financial Moves to Make at Fifty

What accounts for this failure to protect and secure what it took a lifetime to build?

FORBES: Family Business -- Your Most Important Issue -- Successfully Passing It On!