My main responsibility as security inspector is checking on guards.

作为安全检查员，我的主要责任是检查那些值班人员。

youdao

The prisoners were spat on by their guards.

监狱看守朝犯人身上吐唾沫。

《牛津词典》

The guards were ordered to shoot on sight anyone trying to escape.

卫兵接到命令，看见有谁企图逃跑就立即开枪。

《牛津词典》

This was often dangerous, because guards on the train would throw the men off or arrest them.

VOA: special.2010.06.13

It will house 8,000 people in tents. Fifty security guards will be on duty around the clock.

VOA: standard.2010.03.29

The situation in the West African country remains volatile, after presidential guards opened fire on tens of thousands of pro-democracy protesters on September 28.

VOA: standard.2009.10.16

Despite the massive security at Woodhill, there have been numerous assaults on guards who at times have had to put on full riot gear.

ECONOMIST: Prisons

Also on Wednesday, security guards on the seventh floor of the hospital where Mr Berlusconi was staying apprehended a man who said he wanted to speak to the prime minister.

BBC: Italian PM Silvio Berlusconi leaves hospital

Walkie-talkies crackled, a police helicopter hovered overhead and acres of day-glo clothing were apparent on the guards monitoring the perimeter.

BBC: Fortress security for GM wheat trial