他相信有必要告诉他们这件事的翻译：He believes it is necessary to tell them about it 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

He believes in the need to tell them this

He believes it is necessary to tell them about it

He believed has the necessity to tell them this matter

He believed that it was necessary told them that the matter

He believes it is necessary to tell them about it