area with less lightning activities

例句：

1. 1.The city has a large area of greenspace.
   这个城市有大片的绿地。
2. 2. Thescientist studied the geological area around thevolcano.
   科学家研究了火山周围的地质区域。
3. 3. The new project will cover anarea of 500 square kilometers.
   新项目将覆盖500平方公里的区域。