他们不得不在隧道入口处安置一名信号员站岗。

They had to post a signalman at the entrance to the tunnel.

《柯林斯英汉双解大词典》

一名城市巡视员通过一个抓杆到地下的采石场检查。隧道偶尔也会发生塌陷。

A city inspector drops down a shaft into a quarry for an inspection. Tunnels occasionally collapse.

youdao

5日发生的贵昆铁路隧道工程塌方事故中8名被困人员于6日下午全部被成功救出。

The 8 workers who were trapped Friday in a collapsed tunnel in the Guiyang-Kunming railway were rescued Saturday afternoon.

youdao