下列文件对于本文件的应用是必不可少的的翻译：The following files for the application of this document is essential 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

The following documents for the application of this document is essential

The following files for the application of this document is essential

正在翻译，请等待...

The following documents for application of the present document is an indispensable

The following files for the application of this document is essential