Someone who is devoted to a person loves that person very much.
a loving and devoted husband.
一个忠爱的丈夫。
If you are devoted to something, you care about it a lot and are very enthusiastic about it.
I have personally been devoted to this cause for many years.
我个人多年来一直热衷于这项事业。
Something that is devoted to a particular thing deals only with that thing or contains only that thing.
A large part of the Internet is now devoted to weblogs.
因特网的很大一部分如今都专用于网络博客。