但这种结论缺乏理论依据的翻译：But this conclusion lacks theoretical basis 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

However, the lack of theoretical basis for this conclusion

But this conclusion lacks theoretical basis

But this kind of conclusion lacks the theory basis

But such a conclusion based on lack of theoretical

But this conclusion lacks theoretical basis