This cosmic microwave background radiation, they said, represents the ancient afterglow of the big bang.

他们说，这宇宙微波背景幅射代表着宇宙大爆炸的余辉。

youdao

This cosmic microwave background radiation, they said, represents the ancient afterglow of the big bang.

他们说，这宇宙微波背景幅射代表着宇宙大爆炸的余辉。

youdao