In fact, the practice is common in the universe and illustrated by this striking pair of interacting galaxies from the Banks of the southern constellation Eridanus (the River).

实际上，这种现象在宇宙中很普遍，图中南天星座波江座(河流星座)河岸中这醒目的一对相互作用星系就是例子。

youdao

In fact, the constellation Cygnus is sometimes called the Northern Cross.

事实上，天鹅座有时也被称为北十字星座。

youdao

In fact, the constellation Cygnus is sometimes called the Northern Cross.

事实上，天鹅座有时也被称为北十字星座。

youdao