无雨区;干旱区
Rainless region and semiarid region account for one third of the earth land surface area. In these areas, lack of water has been a bottleneck that restricts the development of agriculture and forestry, has a strong impact on the living and development of human.
地球上约三分之一土地属于干旱区或半干旱区,在这些地方,缺水已成为制约农林业发展的瓶颈,严重影响人类的生存和发展。
英语网 · 双语新闻
英语网 · 双语娱乐资讯
英语网 · 英语词汇
英语网 · 四六级英语