drug是可数还是不可数名词

是可数名词。1）可数 药物 例：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。

2）可数** 例：his mother was on drugs,on ***e.吸可卡因。例：she was sure leo was taking drugs.她肯定利奥在吸毒。