河外星云 Traditional 河外星雲 hé wài xīng yún 🔊 extragalactic nebula + Keep this word Meanings hé wài xīng yún 河外星雲 extragalactic nebula Its characters 河hériver (CL:條|条[tiao2],道[dao4])HSK 3外wàioutsideHSK 1星xīngstar云yúncloudHSK 4