Read Edit View history 固若金汤 gùruòjīntāng invulnerable Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 固若金汤/固若金湯 · gùruòjīntāng · invulnerable 2026/03/04 固若金汤 / 固若金湯 gùruòjīntāng invulnerable extremely well fortified and secure against attack; impregnable 这座城堡守卫森严，固若金汤，敌人很难攻破。 created sense Mar 4, 2026, 02:25 AM