gu3 joek6 gam1 tong1固若金湯固若金汤

Jyutpinggu3 joek6 gam1 tong1
Yalegu yeuhk gām tōng

Definition

Impregnable; strongly fortified and extremely secure.

Grammar color guide

Noun
Verb
Adjective
Adverb
Pronoun
Classifier
Particle
Connector