My hometown used to be a backward place, because it was deep in the mountains, where there were no nice buildings and the roads were so narrow and dirty.
我的家乡过去是一个落后的地方，因为它在深山里面，那里没有漂亮的建筑物，公路也是又小又脏的。

People lived a poor life.
人们的生活都很贫苦。

While in recent years, with the development of society, my hometown has been greatly changed.
近年来，随着社会的发展，我的家乡发生了很大的变化。

Now the roads are getting much wider.
现在的路是越来越大了。

There are many different cars and buses running on the roads.
有许多不同的汽车和公交车在道路上运行。

Trees and flowers are planted on the two sides of the roads.
道路两边种满了树木和鲜花。

They can provide us with oxygen and fight against the pollutants.
他们可以为我们提供氧气，与污染物抗争。

So the sky becomes cleaner and brighter.
现在天空变得更清洁、更明亮。

What's more, you can see many modern and beautiful buildings everywhere, and the living conditions are improving.
更重要的是，你随处可见到许多现代和美丽的建筑，人们的生活条件也得到了改善。

People are enjoying a comfortable life now.
现在人们在享受舒适的生活。