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strictly
Smoking is strictly forbidden here.
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severely
They'll be severely punished.
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harshly
-
sternly
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surowo (np. spojrzeć), stanowczo (np. powiedzieć coś)
-
rigidly
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stringently
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ruggedly
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inclemently
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intemperately
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gauntly
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surowo (o wyglądzie krajobrazu)
literary
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portentously