若有多余时间可以复习各科的3年中的书的翻译：If you have extra time to review the section 3 of the year book 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

If extra time to review the sections of the book 3 years

If you have extra time to review the section 3 of the year book

If has the unnecessary time to be possible to review various branches 3 year books

If there is a surplus of time could be refresher sections of the book 3 years

If you have extra time to review the section 3 of the year book