数学上的抽象还是感性的东西，虽然是没有特定存在的抽象的感性东西。

But these are still the object of sense, although the sensible is abstract and idealised.

youdao

数学上的抽象还是感性的东西，虽然是没有特定存在的抽象的感性东西。

But these are still the object of sense, although the sensible is abstract and idealised.

youdao