a powerful drug的用法和样例：
- Coke is a powerful drug made from the leaves of the coca plant.
- The elephant is rubbing an insect over its body, which contains a powerful drug .
- In recent years, stents have been coated with a polymer that slowly releases a powerful drug to keep scar tissue from forming.
- Police believe that Michael Jackson's personal physician killed him by administering a powerful drug, according to reports.
- The inmates are likely connected to the Gulf Cartel, a powerful drug cartel operating in northern Mexico, Medina said in a statement Saturday.