a constellation in the northern hemisphere between Pegasus and Draco in the Milky Way; contains a black hole
a genus of Anatidae
双语例句
用作名词 (n.)
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。
Today, the resulting supernova remnant has faded and is now visible only through a small telescope directed toward the constellation of Cygnus. 如今，形成的超新星遗迹已经慢慢退去，只有通过小型望远镜朝天鹅座方向看去才能看到。
