n.對分(減半；對半膠合；半疊接)
v.對分(重接)
The latest planes have halved the time needed for crossing the Atlantic. 最新型號的飛機把飛越大西洋所需的時間減少了一半。
It is one of their proudest boasts that they have halved the death rate from typhoid. 他們使傷寒病人的死亡率降低了一半，這是他們最感驕傲的事之一。
