late 14c., from astronomy (q.v.), replacing French import astronomyen (c. 1300), which, had it survived, probably would have yielded *astronomian. Still in Shakespeare used in places where we would write astrologer.
实用例句
1. An astronomer can determine the brightness of each star.
天文学家能够测定每颗恒星的亮度。
来自柯林斯例句
2. A new star attracted the notice of the astronomer.
新发现的一颗星引起了那位天文学家的注意.
来自《简明英汉词典》
3. Finally one day, an astronomer came to our village.
终有一日, 村子里来了一个天文学家.
来自汉英文学 - 现代散文
4. He is reputed to have been a good astronomer.
他以一个优秀的天文学者闻名于世.
来自辞典例句
5. It is the only tangible object the astronomer can handle.