VOA慢速英语:新研究提出了阻止新冠病毒传播的方法

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

asymptomatic – adj. medical: having or showing no symptoms of disease

quarantine –n. a situation of being kept away from others to prevent the spread of a disease

isolation – n. the state of being in a place or situation that is separate from others : the condition of being isolated

transmission – n. the act or process by which something is spread or passed from one person or thing to another

tremendous – adj. very large or great