Officially, the guard was to protect us. In fact, they were there to report on our movements.

据宣称，警卫是来保护我们的。实际上，他们是来监视我们的行动的。

《柯林斯英汉双解大词典》

A security badge can be worn by a guard and it tells you his job is to protect you.

安全标识通常都是保安或门卫佩戴的，它会告诉你保安的工作就是保护你的安全。

youdao

God gives shepherd leaders the responsibility to guard, protect, defend, and care for the spiritual welfare of his flock.

神给牧羊人责任去领导、保护、防御，并关心他羊群的属灵福祉。

youdao

And while they eat the grass, they may need guard animals to protect them from animals that would like to eat them.

VOA: special.2010.01.19

He has been told to guard and protect you.

VOA: special.2010.07.17

But with every legislator determined to protect bases and guard units in his or her home district, it looks harder and harder to see how money can be freed for this shopping spree.

ECONOMIST: Anything useful to do, besides fighting the army?

It is hard to protect shopping malls or guard water supplies everywhere.

ECONOMIST: Tense times at home

Since the Metropolitan Police were allowed to undertake the search, many MPs have questioned whether the Speaker is doing enough to protect their rights and guard Parliament's ability to hold the government to account.

BBC: Labour MP urges Speaker to resign