这种做法类似于房子烧毁后再安装洒水装置。
That is akin to installing sprinklers after the house has burned down.
你应该先从照明工具包入手，然后再安装安全设备。
You could begin with a lighting starter kit and add on security devices later.
这项花费25万欧元的工程将再安装两扇大铁门和一套闭路电视系统。
The 250,000-euro project will install two more iron gates and a CCTV system.
应用推荐