rejional economic center的用法和樣例：
例句
- With more than four million inhabitants, Casablanca is the industrial and financial center of Morocco.
卡薩布蘭卡的人口有四百多萬，它是摩洛哥的工業與經濟中心。 - The economic centers of the world are the important urban agglomeration districts under the condition of the economic globalization.
摘要在全球經濟一體化的背景下，世界經濟中心是在一批具有重大影響的城市群區域。
