roll-in
英语音标
英式：[ˈrəʊlˈɪn]美式：[ˈrəʊlˈɪn]
英语翻译
滚入
英语例句
The little pieces of which are broken off from hills and mountains roll down into the valleys,and we sometimes find great heaps of rough,sharp stones near the bottom of a mountain. 从岩石上剥落下来的小石头片滚入山谷，我们有时在山脚的附近发现大量粗糙尖锐的石头。