When we set foot on familiar home town land, you ever can have thought, the safety that carries to assure railroad is expedite, railroad worker does it made how old arduous effort!

• 当我们踏上熟悉的家乡土地时,你可曾想过,为了保证铁路运输的安全畅通,铁路工作者为之做出了多大的辛勤努力!