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жизнь покажет - We'll live and see ( We’ll see) Жизнь опровергает догмы. - (Real) life refutes dogma. Жизнь может вновь заставить нас прибегнуть к чрезвычайным мерам. - In the future we might again face the need for emergency measures. сама жизнь показала/доказала - the course of events has shown/demonstrated, what we have seen/experienced has shown, it has now become clear (beyond any doubt) that..., we have now seen that…