因为项目前期关键顾问的变更的翻译：Because the key consultant of project changes 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

Because the key consultants of the project pre-change

Because the key consultant of project changes

Because of project earlier period essential consultant's change

As the project consultant for critical pre-change

Because the key consultant of project changes