gù​ruò​jīn​tāng

impregnable

固若金汤 固若金湯 gù​ruò​jīn​tāng
impregnable
(idiom) strongly fortified and invulnerable to attack; literally as secure as a city protected by a metal wall and a moat of boiling water

Frequency

Movie subtitles
0.510 per million appears in 0% of films
Written text
0.399 per million

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