areas covered with forests

例句：

1. 1. The city covers several areas in the country.
   这个城市覆盖了该国的几个地区。
2. 2. The research covered various areas of technology.
   这项研究涵盖了技术领域的多个方面。
3. 3. The company has offices in many areas around the world.
   这家公司在世界许多地方都有办事处。