n.对分(减半；对半胶合；半叠接)
v.对分(重接)
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。
