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HSK 6
xiāngmutuallyassistxiāngmutuallychéngcomplete
To complement each other; to supplement and complement.

Literal meaning

mutually (相) — assist (辅) — mutually (相) — complete (成)

Origin

A classical four-character phrase describing the interdependence of things.

Examples

zhèliǎnggàiniànxiāngxiāngchéng
These two concepts complement each other.
lùnshíjiànyīnggāixiāngxiāngchéng
Theory and practice should complement each other.

Usage & nuances

Often used to describe a mutually beneficial relationship.

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