Definition
with the permission or authorization of someone or something.
经由…的许可；承蒙…的允许
This photograph is provided courtesy of National Geographic magazine.
这张照片由《国家地理》杂志提供。
We were able to tour the museum courtesy of the docent's assistance.
我们能够参观博物馆，多亏了导览员的协助。
This research is courtesy of a grant from the Medical Research Foundation.
这项研究承蒙医学研究基金会的资助。
as a result of or because of something.
由于；因为
He is feeling unwell today, courtesy of his late night working yesterday.
他今天感觉不舒服，因为昨晚工作到很晚。
She got cavities, courtesy of eating too much candy.
她得了蛀牙，因为吃了太多糖果。
The building has structural issues, courtesy of the contractor's negligence.
这栋建筑物有结构问题，因为承包商的疏忽。