drug
单词辨析：
可泛指任何药品，用于复数时多指毒品。
This is a drug used in the treatment of a cold.
这是一种用于治疗感冒的药物。
He was arrested for taking drugs.
他因吸毒而被捕。
指药品，尤指口服的药水。
cough medicine
咳嗽药
She takes this kind of medicine three times a day.
这种药她每天服三次。
Do not say 'drink medicine' but say that you 'take your medicine'.
不要说drink medicine而要说take your medicine。
相关例句：
He believes the government already is lenient with drug traffickers
他认为政府对毒贩已经很宽容了。
The central section of the book is a historical overview of drug use.
该书的核心部分对毒品的使用作了历史概述。
The drug can cause inflammation of the liver.
该药会引起肝脏炎症。
He's taking a dangerous drug: it acts very fast on the central nervous system
他正在服用一种危险的药物：这种药物能很快影响到中枢神经系统。
The new drug lessens the severity of pneumonia episodes.
新药减轻了肺炎发作时的痛苦。
People who have fingered crack houses and fingered drug dealers have been assassinated.
那些告发可卡因毒窟和毒品贩子的人遭到了暗杀。