4 sentences

1. 星系是宇宙的命脉。

   xīng​xì shì yǔ​zhòu de mìng​mài.

   Galaxies are the lifeblood of the universe.

   Source: OpenSubtitles

2. 太空中有数十亿的星系。

   tài​kōng zhōng yǒu shù​shí​yì de xīng​xì.

   There are billions of galaxies out there.

   Source: OpenSubtitles

3. 星系是科学界的超级巨星。

   xīng​xì shì kē​xué​jiè de chāo​jí jù​xīng.

   Galaxies are the superstars of the scientific world.

   Source: OpenSubtitles

4. 星系是狂暴的。

   xīng​xì shì kuáng​bào de.

   Galaxies are violent.

   Source: OpenSubtitles