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you scratch my back and I'll scratch yours [idiom]
Help someone back who has helped you
لطف کسی را جبران کردن
مثال:
Ali: Sue, would you please give me a hand with my math homework? Sue: Sure, I’ll do it if you promise to help me with the housework later. Scratch my back and I’ll scratch yours.
لینک کوتاه به این لغت: