central role的用法和樣例：
例句
- As the most universal and most representative organization in the world,the United Nations must play the central role.
聯合國作為世界上最具普遍性和代表性的組織，必須發揮核心作用。 - During my years at USTR, I worked closely with Congress and appreciate its central role in regulating foreign trade.
在美國貿易代表辦公室，我與國會聯繫密切，深感國會在管理對外貿易中的核心作用。
