金城汤池

• 金(gold; metal (figurative))ASSOCIATIVE

Metal is an ancient image of precious metal hidden underground, gleaming and sparkling.

• 土(earth; soil; ground)RADICAL
• 成(complete; become)PHONO-SEMANTIC

A fortified wall built from earth protects the completed territory.

• 氵(water; liquid)RADICAL
• 昜(radiate; spread)PHONETIC

Hot water evaporates and spreads everywhere like sunlight.