Pinyin-Yingyuu/Xīngxì de měigè héngxīng

來自維基學院

Xīngxì de měigè héngxīng (i.e. tàiyáng) dōu wéirào yīgè chēngwéi hēidòng de zhōngxīn yùnxíng.

Every stars (i.e. suns) of a galaxy runs around a center which is called a black hole.