Altair造句

Altair is not as bright as Vega and Deneb.
牛郎星不如织女星和天津四明亮.

While more 3 stars, called the Altair.
一边多了三颗星, 叫做牛郎星.

Altair is as bright as Vega and Deneb.
牵牛星与织女和天津四相比,光亮度还是略为逊色.