One comfort is, we're free now, and needn't waste any more of our precious time doing sentry-go.

唯一的安慰是，我们现在自由了，不必再浪费我们宝贵的时间去放哨。

youdao

youdao

The sentry would not let her enter.

警卫不会让她进来。

《柯林斯英汉双解大词典》

The U.S.military uses dogs to help troops on sentry duty and bomb-sniffing patrols.

VOA: standard.2010.05.18

Two of the best are " Ice Lights", a light-installation at Vancouver City Hall that looks like ice framing the historic building, and " The Birds", a pair of larger-than-life bird sculptures that once stood sentry at the site of the Olympic Village and now roost at the Southeast False Creek Plaza.

BBC: Vancouver after the Games

To get their fix, Xbox 360 gamers with room for one more carry-on will want to turn to GAEMS. The company is showing off its G155 Sentry "personal gaming and entertainment environment" at E3 this year -- a so-called PGE.

ENGADGET: GAEMS G155 Sentry suitcase for Xbox 360 hands-on Hands-on

Beyond the camp, at each point of the compass, Nepalese Gurkhas hired by DynCorp maintained sentry positions in foxholes and in sandbagged machine-gun nests on the roofs of trucks.

NEWYORKER: The Taliban��s Opium War