Read Edit View history 赛德娜 Sàidénà Sedna Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 赛德娜/賽德娜 · Sàidénà · Sedna 2026/03/04 赛德娜 / 賽德娜 Sàidénà Sedna Sedna, a small body in the outer reaches of the solar system 赛德娜是太阳系中最遥远的天体之一。 proper name created sense Mar 4, 2026, 02:25 AM