Meaning of りょうてんびん in Japanese

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Definition of りょうてんびん

りょうてんびん(ryoutenbin) 【両天秤】

りょうてんびんをかける(ryoutenbinwokakeru) 【両天秤を掛ける ·両天秤をかける】

(exp, v1) to try to have it both ways; to try to sit on two stools →Related words: 両天秤に掛ける

りょうてんびんにかける(ryoutenbinnikakeru) 【両天秤に掛ける ·両天秤にかける】

(exp, v1) to try to have it both ways; to try to sit on two stools →Related words: 両天秤を掛ける
両天びんにかけようたってそうはいきませんよ。
You can't have it both ways.