He talks about the line falling back, the sector evacuated, and so on and so forth, as though he were dug into a trench and writing a report to headquarters.
他讲到退却的防线和撤出的战区，以及诸如此类的事情，好像他正在一条战壕里向司令部写报告。
2
My colleague had gone back up to the truck to get some tools, and 30 seconds later the trench caved in on me.
我的同事回到卡车上去拿些工具，30秒后沟塌了，土压在我身上。
3
When officers returned home after the war, they brought back their trench coats with them and the style became adopted into civilian life.