extendere(拉)伸展, 拉长extendv.延伸；延长；伸展；扩展；提供；使竭尽全力extendable functor可扩张的函子extended-utility扩展能力extended carbuncle疔苗extended household扩大家户extended care unit持续监护病房extendedbackground展宽背景extended formation疏开队形extended interface扩充接口extend this method推广这个方法extend one's years