Players must wear padding to protect them from injury.

运动员们必须戴上护垫以保护自己不受伤害。

《柯林斯英汉双解大词典》

We must protect them.

我们必须保护他们。

youdao

Scientists are now racing to protect them.

现在，科学家们正在加紧对它们的保护。

youdao

Rockman imagines a terrible future in which plants and animals must be sent into space to protect them from Earth's pollution.

VOA: special.2010.12.15

But because of the similarity of the viruses, the immune response that people developed would also protect them against natural infections with variola.

因为这两种病毒很相像,人体的免疫应答也能保护自己,免受天花的感染

耶鲁公开课 - 生物医学工程探索课程节选

Children get diseases from a class of viruses called rotaviruses, for which we have no vaccine, and- and so no way to protect them.

儿童因轮状病毒而生病,而我们没有针对这种病毒的疫苗,所以,所以我们没有办法保护儿童

耶鲁公开课 - 生物医学工程探索课程节选

French, who's already taught Qpid.me to about 120 students, says he did it to protect them.

CNN: STD site partners with school district

All rich countries subsidise their film industries to some extent to protect them against the Americans.

ECONOMIST: Films and tax relief

Who will give anything -- sometimes even their lives -- to protect them in our absence.

CNN: The courage of teachers