cooperation and exchange的用法和樣例：
例句
- We sincerely welcome friends from all over the world for education cooperation and exchange.
真誠歡迎海內外朋友與我們合作交流。 - One hallmark of the new research is active cooperation between professionals and amateurs from many backgrounds and cultures.
新研究的特點是來自許多背景和文化的專業人員與業餘愛好者之間的積極合作交流。
