Medicinal substances used to diagnose, treat, or prevent disease.

• Pharmaceutical compounds supplied for therapeutic use.

用于诊断、治疗或预防疾病的药物。

• 为治疗用途提供的药品。

Psychoactive substances used recreationally, often illegal and addictive.

• Illicit narcotics or stimulants such as cocaine or heroin.

用于娱乐的精神活性物质，常为非法且易成瘾。

• 如可卡因或海洛因等非法毒品。

Third-person singular of drug: administers a drug to impair or sedate.

• Secretly adds a drug to someone's food or drink.

to drug 的第三人称单数：为使其镇静或失能而投药。

• 将药物偷偷加入他人的食物或饮料。

Third-person singular of drug: gives or prescribes medication as treatment.

• Administers pharmaceutical drugs under medical supervision.

to drug 的第三人称单数：给予或开具药物治疗。

• 在医疗监督下施用药物。