DICT.TW Dictionary Taiwan

 水心あれば魚心
 みずごころあればうおごころ
 Expressions (phrases, clauses, etc.)
 see: 魚心あれば水心
 idiomatic expression
 if you do a favor for somebody, you will get a return favor
 if the water is kind to fish, the fish will be friendly toward water too
 mutual back-scratching
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