/drʌɡ/ N-COUNT A drug is a chemical which is given to people in order to treat or prevent an illness or disease. 药物； The drug will be useful to hundreds of thousands of infected people. 这种药物将会对成千上万感染者有用。 N-COUNT Drugs are substances that some people take because of their pleasant effects, but which are usually illegal. 毒品； His mother was on drugs, on cocaine. 他的母亲吸毒，吸可卡因。 She was sure Leo was taking drugs. 她肯定利奥在吸毒。 Drug offences are a big NO! Don’t mess up with drugs. n. 运动禁药；成瘾之事 v. 使服麻醉药；（在食物或饮料中）投放麻醉药；<非正式>吸毒