他的文章充满了抽象的概念，但缺少确凿的事实的翻译：His article was full of abstract concepts, but lacked conclusive facts 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

His article is full of abstract concepts, but the lack of hard facts

His article was full of abstract concepts, but lacked conclusive facts

His article has filled the abstract concept, but lacks the conclusive fact

His article is full of abstract concepts, but lack of hard facts

His article was full of abstract concepts, but lacked conclusive facts