うらをかえす【裏を返す】
「慎重に」と彼は言うが，裏を返せばやる気がないということだHe says we must proceed cautiously, but the truth (of the matter) is...
うらをかく【裏をかく】
相手の策略の裏をかいたI outwitted [outsmarted] my opponent by doing just the opposite of what he expected.
うらをとる【裏を取る】
容疑者のアリバイの裏を取るcollect evidence 「to test a suspect's alibi [to see if a suspect's alibi stands up]
