start learning
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start learning
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start learning
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start learning
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start learning
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start learning
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ekstremalne warunki pogodowe start learning
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extreme weather conditions
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start learning
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start learning
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start learning
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start learning
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start learning
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start learning
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start learning
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start learning
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start learning
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start learning
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start learning
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start learning
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start learning
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start learning
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start learning
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start learning
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start learning
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start learning
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start learning
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start learning
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start learning
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start learning
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start learning
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start learning
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start learning
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start learning
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start learning
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start learning
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start learning
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start learning
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start learning
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start learning
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start learning
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start learning
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start learning
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start learning
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zanieczyszczenie spalinami start learning
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podnoszący sie poziom morza start learning
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wyrzucanie śmieci w niedozwolonych miejscach start learning
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start learning
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odnawialne źródła energii start learning
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start learning
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zakazać używania toreb plastikowych start learning
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ban the use of plastic bags
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start learning
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korzystać z transportu publicznego start learning
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ograniczać zużycie energii start learning
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start learning
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start learning
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start learning
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start learning
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earthquake(czyt. erfkłejk)
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start learning
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start learning
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