我们的焦点必须永远集中于思想观念在这个客观世界中的最初源头。

The focus must always be on the originating sources of our ideas in the objective world.

youdao

我们的焦点必须永远集中于思想观念在这个客观世界中的最初源头。

The focus must always be on the originating sources of our ideas in the objective world.

youdao