毛出在羊身上 máo chū zài yáng shēnshàng

máo chū zài yáng shēnshàng phrase wool comes from the sheep's back; One gets the benefit, but the price has been paid.
Domain: Proverb 谚语
Notes: (CC-CEDICT '毛出在羊身上')

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羊毛出在羊身上