你必须在校长回来前完成这项工作。的翻译：You must finish the work by principals came back. 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

You must return the principal to complete the work.

You must finish the work by principals came back.

Front you must come back in principal to complete this work.

You must be completed before the school principal came back this work.

You must finish the work by principals came back.