The security guards stood at attention as the CEO entered the headquarters lobby.

執行長走進總部大廳時，保全人員立正站好。

During the hotel's opening ceremony, the doormen stood at attention beside the flag.

飯店開幕典禮上，門房們在旗幟旁立正站好。

The airport honor guard snapped to attention when the visiting minister stepped off the plane.

來訪部長走下飛機時，機場儀隊迅速立正。