It's a familiar sight in many of the UK's airports - long queues of people waiting to go through security to catch their flights.

在英国的机场，人们为了赶航班排着长队来等候安检已是司空见惯。

youdao

Article 31 Air mail must go through security inspection.

第三十一条航空邮件必须经过安全检查。

youdao

He was then released into the terminal to go through security a second time.

FORBES: Why You Should Think Very Seriously Before Expressing Political Views at Airport Security

To buy their presents in Belfast, and many provincial town centres, shoppers had to go through security gates and be searched before heading to department stores.

BBC: 1978 - Christmas in Crossfire

"He came to this first point of access to the compound ... where you have to have your ID checked, you have to go through security, " Nuland said.

NPR: Suicide Bomber Kills Guard At US Embassy In Turkey