我们离开主路，走上了一条泥土小径。

We followed a dirt ___track off the main road.

然而，第二天太阳出来了，我们走上了一条山路。

However, on the second day, the sun appeared, and we went on a mountain ___track.

一条狭窄的小路穿过森林，通向一个隐蔽的湖泊。

A narrow ___track leads through the forest to a hidden lake.