EPA also enforces noise standards for trucks and airplanes.环保局对卡车和飞机也规定了噪音标准.He enforces an argument by analogies.他用种种比方来加强论点.The legislative branch enacts laws ; the executive branch enforces them , and the judicial bra...
The contract warrants that an experienced person is on board all the time.合同确保一位富有经验的人会一直呆在船上。The future fo operations research applied to management decisions warrants enthusiasm.在管理决策中应用作业研究的前景是乐观的.Roman mathematics ha...