例句
They’ve installed the new computer network at last.
他们终于安装了新电脑网络。
Security cameras have been installed in the city centre.
在市中心已安装了一些监控摄像机。
They’ve installed the new computer network at last.
他们终于安装了新电脑网络。
Security cameras have been installed in the city centre.
在市中心已安装了一些监控摄像机。