開源節流 [ㄎㄞ ㄩㄢˊ ㄐㄧㄝˊ ㄌㄧㄡˊ; kai1 yuan2 jie2 liu2] lit. to open a water source and reduce outflow (idiom); to increase income and save on spending to broaden the sources of income and economize on expenditure ◄ ►
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