Read Edit View history 人马臂 rénmǎbì Sagittarius Arm Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 人马臂/人馬臂 · rénmǎbì · Sagittarius Arm 2026/03/04 人马臂 / 人馬臂 rénmǎbì Sagittarius Arm Sagittarius spiral arm (of our galaxy) 银河系的人马臂是一个巨大的恒星结构。 noun created sense Mar 4, 2026, 02:25 AM