in addition to 可以作连词，引导一个并列结构，表示“除了……之外”的意思。例如：

> In addition to being a doctor, he is also a writer.

> 除了是一名医生之外，他还是一名作家。

in addition to 也可以作介词，后接名词或代词，表示“除了……之外”的意思。例如：

> In addition to the book, I also bought a pen.

> 除了这本书之外，我还买了一支笔。

in addition to 还可以引导一个动词不定式结构，表示“除了……之外”的意思。例如：

> In addition to studying hard, he also works part-time.

> 除了努力学习之外，他还兼职工作。

in addition to 后面还可以接一个动名词结构，表示“除了……之外”的意思。例如：

> In addition to reading books, he also enjoys listening to music.

> 除了读书之外，他还喜欢听音乐。