原理: principle; tenet; axiom; theory 短语和例子根本的原理 a cardinal principle; 数学的基本原理 fundamentals of mathematics; 违反马克思主义的基本原理 contravene the basic principle of marxism; 详述 ... 的原理 develop the theory
药物: medicinal; medicine; medicant; medication; drug; pharmaceuticals; medicaments 短语和例子药物医治 heal with drugs; 药物过敏 drug allergy; 药物化学 pharmaceutical chemistry; 药物中毒 drug poisoning