短语词组短语dangling pointer 悬垂指针;悬挂指针;悬摆指针;悬空指针Dangling Node 悬挂节点dangling topics 悬垂话题Dangling Gerund 悬垂动名词dangling object 悬空对象;悬置物件dangling plate 一种类型为悬挂板式dangling particle 悬垂分词dangling element 悬垂结构dangling region 舞区 返回 dangling