岗亭

zài měi gè jiǎo luò dōu yǒu gè gǎng tíng

在每个角落都有个岗亭。

There was a sentry box stood at each corner.

nà shì yī zuò dān kǒng tiě qiáo liǎng duān gè yǒu gè gǎng tíng

那是一座单孔铁桥，两端各有个岗亭。

It was a steel bridge of a single span and there was a sentry box at each end.