Read Edit View history 牢固 láogù HSK7 firm Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 牢固 · láogù · firm 2026/03/04 牢固 láogù firm firmly fixed in place; secure, sturdy, or solid 地基打得很牢固，房子不会摇晃。 adjective created sense Mar 4, 2026, 02:25 AM