唯心主义和唯物主义的界限还不明确。的翻译：Limits of idealism and materialism are not clear. 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

The limits of idealism and materialism is not clear.

Limits of idealism and materialism are not clear.

The idealism and the materialism boundary is not clear about.

Idealism and materialism of the boundary is not yet clear.

Limits of idealism and materialism are not clear.