n.长度，长；时间的长短；（语）音长；一段，一节 变形： 复数：lengths 双语释义：n.(名词)[U][C]长,长度,距离 measurement or extent from end to end[C]一段,一节 piece of sth英英释义： length[ leŋθ, leŋkθ ]n.the linear extent in space from one end to the other; the longest horizontal dimension of something tha