禁用英文：forbidden This drug is contraindicated in patients with asthma. 这种药哮喘病人禁用。Use of the drug has not declined since its prohibition. 自从禁用该药以来,该药的使用并未减少.These questions are special cases of the so called forbidden subgraph problem. 这些问题都是所谓禁用子图问题的特殊情形.
