わきまえなさい

You've got another thing coming.

You will have to rethink your position.

あなたは自分の立場をもう一度考えてみるべきでしょう。

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「Common American Phrases in Everyday Contexts～A detailed guide to real-life conversation and small talk～」RRichard A. Spears, Ph.D. / The McGraw-Hill Companies