The Paramount task here facing observational astronomy is to study real interstellar clouds.

实测天文学在这里所面临的头等任务是研究实际的星际云。

youdao

The Paramount task here facing observational astronomy is to study real interstellar clouds.

实测天文学在这里所面临的头等任务是研究实际的星际云。

youdao