Read Edit View history 外延 wàiyán extension Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 外延 · wàiyán · extension 2026/03/04 外延 wàiyán extension extension (semantics) 内涵和外延是逻辑学中的重要概念。 noun created sense Mar 4, 2026, 02:25 AM