Read Edit View history 凸边 tūbiān rim Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 凸边/凸邊 · tūbiān · rim 2026/03/04 凸边 / 凸邊 tūbiān rim a protruding edge or raised border 这个金属零件的凸边需要进一步打磨。 noun created sense Mar 4, 2026, 02:25 AM