他们决定彻底调查这件事的翻译：They decided to thoroughly investigate the matter 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

They decided to investigate this matter thoroughly

They decided to thoroughly investigate the matter

They decided investigates this matter thoroughly

They decided to conduct a thorough investigation of this matter

They decided to thoroughly investigate the matter