宇宙学研究宇宙的起源和膨胀过程。

___Cosmology explores the origin and expansion of the universe.

现代宇宙学认为大爆炸是宇宙的起源。

Modern ___cosmology suggests that the Big Bang was the origin of the universe.

古代中国的宇宙观认为天地万物都由阴阳两种力量所驱动。

Ancient Chinese ___cosmology believed all things in the universe were driven by the forces of yin and yang.