开源节流 (開源節流) kāi yuán jié liú

kāi yuán jié liú set phrase to open a water source and reduce outflow
Domain: Idiom 成语 , Subdomain: , Concept:
Notes: Figuratively, to increase income and save on spending or to broaden the sources of income and economize on expenditure (CC-CEDICT '開源節流'; Guoyu '開源節流')

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