His interest in astronomy led him to build his own telescope.

他对天文学使他自己动手制作了一台远镜。

Physics and astronomy are cognate sciences.

物理学与天文学是互有关联科学。

Do you know anything about astronomy?

你懂天文学吗?

Mathematics is connected with astronomy.

数学与天文学有联系。

Astronomy is an abstract subject.

天文学是一门深奥学科。

Astronomy -s from astrology.

天文学是由占星术演变而来。