However, the technique cannot really fix the problem with the road on the other side of the river just below the castle.

然而，这项技术并不能真正解决问题的道路的另一边的河流，只低于城堡。

youdao

There is a river on the other side of the road.

在公路的另一边有一条河。

youdao

The side of the road was full of water. It was like a small river.

路旁积满了水，很像一条小河流。

youdao

Heading back to Arequipa, it is worth visiting some of the isolated settlements on the north side of the Colca River, reachable by a rough single-track road.

BBC: Exploring Peru��s epic Colca Canyon