to keep someone or something safe from injury, damage, or loss

clothing that protects you against the cold 御寒的衣服

It's important to protect your skin from the harmful effects of the sun. 保护皮肤不受太阳的伤害是很重要的。

Surely the function of the law is to protect everyone's rights. 法律的作用当然是保护每个人的权利。

Of course the company will act to protect its financial interests in the country if war begins. 如果战争爆发，这个公司当然会采取行动保护自己在该国的经济利益。

Patients' names have been changed to protect their privacy. 病人的名字被改换了以保护他们的隐私。

Public pressure to protect the environment is strong and growing. 公众要求保护环境的呼声越来越强烈。

Vitamin C may help protect against cancer. 维生素C可能有助于抗癌。

If a government protects a part of its country's trade or industry, it helps it by taxing goods from other countries.

to provide someone with insurance against injury, damages, etc.