| 例句 |
She hummed to herself as she walked to school.她在上学的路上边走边哼曲子。Most blinds can be fixed directly to the top of the window-frame.大多数窗帘都可直接安装在窗框上边。The two men were deep in conversation as they walked up the path.这两个男人在小径上边走边专注地交谈。What's going on up there?那上边出什么事了？ |