英语语法分析

Sirius is the brightest star in the sky.

天狼星是天空中最亮的一颗星。

《牛津词典》

Then, a couple of months later, one morning in the eastern sky just before dawn, Sirius would reappear.

然后，几个月以后的一天早晨，在黎明前的东方的天空上，天狼星又重新出现了。

Their astronomers had discovered that at a certain time of year the brightest star, Sirius, would disappear.

他们的天文学家发现，在一年中的某个时候，最亮的天狼星会消失。