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Opis wykresów
peak, slowly, soar, sharply, unchanged, rose sharply , before plunging back down to its original level., The number of … increased / decreased, slightly, plunge, increase, After a sudden rise it plunged back to its original level, suddenly, reach a plateau, gradually, drop, stood at, grow, shrink, continually, bottom out, surge, remain steady, According to the diagram, level off, to reach a peak, gain, dramaticly, The diagram represents a plateau at the level of , remain, stable, significantly