plague – n. a disease that causes death and that spreads quickly to a large number of people

lymph node – n. any one of many rounded masses of tissue in the body through which lymph passes to be filtered and cleaned

resistant – adj. giving, capable of, or exhibiting resistance — often used in combination, such as a drug-resistant strain of virus

insecticide – n. a chemical product that is used to kill insects

antibiotic – n. medical. a drug that is used to kill harmful bacteria and to cure infections

pneumonia – n. medical. a serious disease that affects the lungs and makes it difficult to breathe. (Pneumonic is the adjective form.)
 2/3   首页 上一页 1 2 3 下一页 尾页