Joke Collection Website - Mood Talk - Zhan Tianyou's fragment draws a compound sentence with double horizontal lines. Tell me, what do you realize?

Zhan Tianyou's fragment draws a compound sentence with double horizontal lines. Tell me, what do you realize?

What sentence?

Follow-up: Where there are mountains, where bridges are to be built, where steep slopes are to be leveled, and where the curvature is to be reduced, all must be surveyed and carefully calculated.

Answer: Explain two points. 1. The road is uneven and full of difficulties; 2. Zhan is conscientious and meticulous in his work. ...