马蹄星云 Mǎtíxīngyún Horseshoe Nebula Definitions Defs Origin Strokes Stroke Words Sentences Sents 马蹄星云 (馬蹄星雲) Mǎtíxīngyún Horseshoe Nebula Omega or Horseshoe Nebula M17 Sources Definitions CC-CEDICT
马蹄星云 (馬蹄星雲) Mǎtíxīngyún Horseshoe Nebula Omega or Horseshoe Nebula M17 Sources Definitions CC-CEDICT