areal area的用法和樣例：
例句
- Earthquakes often cluster in the high gradient areas, which is very different from the case in the area of lower gradients.
布格重力異常高梯度區與中強地震的空間分佈有很好的一致性，與低梯度分布區的弱地震活動性形成鮮明的對比。 - Moreover, Shangqiu was in Yueshi Culture area in the period of Xia and Shang, and then was replaced by the Shang culture in the phase of Bai-jiazhuang.
再者，豫東商丘，夏商時期為岳石文化分布區，而至白家莊期則為商文化所替代。
