慢速英语:Americans Take 80% of World’s Opioid Supply

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epidemic – n. a situation in which a disease or problem spreads very quickly and affects a large number of people

opioids – n. a pain reduction drug that is very addictive

addictive – adj. causing a strong and harmful need to regularly have or do something

prescription – n. a written message from a doctor that officially tells someone to use a medicine.

guidelines – n. advice on how something should be done

option – n. something that can be chosen

dosage – n. the amount of a medicine, drug, or vitamin that should be taken

chronic – adj. continuing pain over a long period of time