You use dedicated to describe someone who enjoys a particular activity very much and spends a lot of time doing it.
双语例句
例：
Her great-grandfather had clearly been a dedicated and stoical traveller.
她的曾祖父显然曾是一个非常投入且坚忍的旅行者。
2.?投身于…的
If you say that someone is dedicated to something, you approve of the fact that they have decided to give a lot of time and effort to it because they think that it is important.
双语例句
例：
He's quite dedicated to his students.
他对学生们很上心。
3.?专用的
You use dedicated to describe something that is made, built, or designed for one particular purpose or thing.
双语例句
例：
Such areas should also be served by dedicated cycle routes.