to exchange的用法和樣例：
例句
- Research is also advanced by frequent conference to exchange experience.
經常開會交流經驗也促進了研究工作的發展。 - In fact, personal contact is the best way to exchange our view.
事實上，個人接觸是交換看法的最好途徑。 - John saved10 cent savings stamps until he had enough to exchange for a$25bond.
約翰儲蓄10分錢的儲蓄券，一直到他有足夠的錢才換成25元的公債券。
