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Bleeding may be herralded by several day of exacerbation of pain.數(shù)天的疼痛加劇可能為出血的先兆.Nonetheless, none of these pathogens is associated with severity of asthma exacerbation.然而, 這些病原體與哮喘惡化的程度無關.His foolishness was followed by...

exacerbation的音標：...

n.惡化，激怒，增劇，轉劇...