Canis Major

例句：

1. 1. The constellation ofCanis Major is known for its brightest star, Sirius.
   大犬座以其最亮的恒星——天狼星而闻名。
2. 2. Astronomers have been studyingthe stars in this constellation forcenturies.
   天文学家们几千年来一直在研究这个星座中的星星。
3. 3. In ancient times,people believed that the constellation wasa symbol of good luck and protection.
   在古代，人们相信这个星座是好运和保护的象征。