圆轨道 Traditional 圓軌道 yuán guǐ dào 🔊 circular orbit (in astronomy and in… + Review this word Meanings yuán guǐ dào 圓軌道 circular orbit (in astronomy and in astronautics) Its characters 圆yuáncircleHSK 5轨guǐrail; track; course; path道dàoroad; path (CL:條|条[tiao2],股[gu3])HSK 4