VOA慢速英语:家庭研究旨在回答有关儿童和新冠病毒的问题

symptom – n. a change in the body or mind which indicates that a disease is present

nasal – adj. always used before a noun : of or relating to the nose

swab – n. a small piece of soft material sometimes on the end of a small stick that is used for applying medicine, cleaning a wound, etc.

stool – n. medical : a piece of solid waste that is released from the body

sample – n. a small amount of something that gives you information about the thing it was taken from

asthma – n. medical: a physical condition that makes it difficult for someone to breathe

allergy – n. a medical condition that causes someone to become sick after eating, touching, or breathing something that is harmless to most people

outbreak – n. a sudden start or increase in the spread of a disease or fighting