◊ If you say that something has been provided through the courtesy of or (by) courtesy of a person, organization, business, etc., you are politely saying that they paid for it, gave it, or let it be used.承蒙…的提供（或赞助、赠送）

◊ The word courtesy is sometimes used informally by itself in this way.单词courtesy有时单独用作此义，非正式用法。

◊ The phrase courtesy of is sometimes also used informally to indicate the cause of something.短语courtesy of有时也用于表示原因，非正式用法。