Word: 星系 (xīngxì) Example sentences using 星系 2 sentences, showing page 1 of 1. 宇宙里有多少个星系呀？ Yǔzhòu lǐ yǒu duōshǎo gè xīngxì ya? How many galaxies are there in the universe? 银河系以外，还有多少星系？ Yínhéxì yǐwài, háiyǒu duōshǎo xīngxì? Apart from the Milky Way, what other galaxies are there?