in addition to 是英语中常用的介词短语，核心含义为“除……之外（还有）”，用于补充说明额外的信息或事物，强调在已有内容基础上的增加。其美式音标为 /ɪn əˈdɪʃn tu/，英式音标为 /ɪn əˈdɪʃən tuː/ 。
语法结构：后接名词、代词或动名词（-ing形式），不可直接接动词原形。例如：
正确：In addition to swimming, she likes hiking.（除了游泳，她还喜欢徒步。）
错误：In addition to swim, she likes hiking.
主谓一致：当主语后接 "in addition to + 名词" 时，谓语动词仍与主语保持一致，而非 "in addition to" 后的名词。例如：
The teacher, in addition to her students, was interested in the book.（老师和学生都对这本书感兴趣。）
语气与语境：比 "also" 更正式，常用于书面语；与 "as well as" 相比，"in addition to" 更强调补充说明，而非两者同等重要。例如：
He is a teacher as well as a writer.（他既是老师也是作家，强调两者并重。）
In addition to being a teacher, he is a writer.（除了教师身份，他还是作家，强调补充。）
In addition to + 名词：In addition to basic salary, there's a list of extra benefits.（除了基本工资，还有一系列额外福利。）
In addition to + 动名词：In addition to studying for exams, she works part-time.（除了备考，她还兼职。）
In addition to this/that：In addition to this, the project requires more funding.（除此之外，该项目还需要更多资金。）
In addition to headaches, you may develop stomach ulcers as well.（除了头痛，你还可能患上胃溃疡。）
In addition to English, he speaks Spanish and French.（除了英语，他还会说西班牙语和法语。）
The new e-books include classics in addition to modern novels.（新电子书除了现代小说，还包括经典著作。）
In addition to connecting peers, cell phones connect children and parents.（手机除了连接同龄人，还连接孩子与父母。）
She enjoys painting in addition to playing the piano.（除了弹钢琴，她还喜欢画画。）
In addition to the rugged road, bad weather added to our difficulties.（除了崎岖的道路，恶劣天气加剧了我们的困难。）
The hotel offers free breakfast in addition to Wi-Fi.（酒店除了提供Wi-Fi，还含免费早餐。）
In addition to being a doctor, he volunteers at a clinic.（除了当医生，他还在诊所做志愿者。）
The course covers theory in addition to practical skills.（这门课除了理论，还涵盖实践技能。）<cite data-id='1000