基本解释羽毛状的同根派生 英汉例句Tall North American reed having relative wide leaves and large plumelike panicles,widely distributed in moist areas,used for mats,screens and arrow shafts.有相对宽大的叶子和羽毛状圆锥花序的一个高大北美芦苇属，广泛分布于潮湿地区，用作席子筛子和矢柄。