投桃报李
- na.give a plum in return for a peach -- return present for present
- 网络return a favor with a favor; If one receives a plun,one must return a peach; to exchange gifts

投桃报李
1.give a plum in return for a peach -- return present for present; exchange gifts between friends; return presents between friends; return a favor with a favor; return present for present; send a plum to get a peach in turn
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