I only know that they are round, and they may perfectly well be flat discs.

我只能得知他们是圆的，而它们完全可能呈扁平的圆盘状。

youdao

I only know that they are round, and they may perfectly well be flat discs.

我只能得知他们是圆的，而它们完全可能呈扁平的圆盘状。

youdao