Zhan Tianyou, I want to tell you.

God bless you. I want to say to you: You are the first person in China who dares to take up such a difficult task. You are not afraid of danger, the consequences after failure, ridicule or ridicule. You resolutely accepted the arduous task because of trees. Zhan Tianyou, I want to say to you: You were the only one in China at that time. During the day, you climbed mountains and surveyed routes. In the evening, you think and draw under the oil lamp. No matter the bad conditions, you always insist on working in the field. You are not afraid of the squall, the yellow sand all over the sky, and the danger of falling into a deep valley. Zhan Tianyou, I want to say to you: your cleverness and wit have changed the fate of China people. You dug the Badaling tunnel, adopted the middle sinking method, and the four ends were constructed at the same time, so the construction period was shortened by half. When the railway could not climb the steep slope, you got a zigzag line. Zhan Tianyou, you are the first patriotic engineer in China!