Read Edit View history 闭区间 bìqūjiān closed interval Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 闭区间/閉區間 · bìqūjiān · closed interval 2026/03/04 闭区间 / 閉區間 bìqūjiān closed interval closed interval 在数学中，闭区间包含其端点。 created sense Mar 4, 2026, 02:25 AM