"Hobby" 是指业余爱好。每个人都有自己的业余爱好可以用 "Everyone has their own hobby" 来表达。
其中 "everyone" 指每个人，"has" 是助动词，"their" 是形容词性物主代词，"own" 是形容词，"hobby" 是名词。
例句：
"John's hobby is playing guitar." (约翰的业余爱好是弹吉他。)
"Samantha's hobby is painting." (萨曼莎的业余爱好是绘画。)
"Everyone has their own hobby, it's important to have something you enjoy doing." (每个人都有自己的业余爱好，有自己喜欢的事情很重要。)