你可以学习天文学，或是空间工程学，可以学的很棒。

You could study astronomy, or space engineering, and be good at it.

youdao

你可以学习天文学或空间工程学。

You could study astronomy, or space engineering.

youdao

你可以学习天文学或空间工程学。

You could study astronomy, or space engineering.

youdao