Read Edit View history 回填 huítián backfill Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 回填 · huítián · backfill 2026/03/04 回填 huítián backfill to backfill 施工人员正在对地基进行土方回填。 verb created sense Mar 4, 2026, 02:25 AM