常见例句The latest planes have halved the time needed for crossing the Atlantic.最新型号的飞机把飞越大西洋所需的时间减少了一半。It is one of their proudest boasts that they have halved the death rate from typhoid.他们使伤寒病人的死亡率降低了一半，这是他们最感骄傲的事之一。 返回 halving