royal road [Qin Dynasty]

例句：

1. 1. The royal roadis a popular tourist destination.
   皇家道路是一个受欢迎的旅游目的地。
2. 2. The royal road was once themain thoroughfare for trade between the twocountries.
   皇家道路曾是两国之间贸易的主要通道。
3. 3.The royal road is now overgrown withweeds and wildflowers.
   皇家道路现在被野草和野花覆盖。