| 例句 |
The normal supply of water has turned brown and unusable.日常用水变成褐色的了，不能用了。Squatters insist that without their work, the buildings would have deteriorated to the point of being unusable.擅自占房者坚称，如果没有他们，这些楼房说不定已经破烂得不能使用了。The virus deletes files and corrupts essential core microchips, leaving computers unusable.这种病毒删除文件，损坏关键的核心微芯片，造成电脑瘫痪。The tools were rusty and unusable.这些工具锈迹斑斑，不能用了。Bombing had made roads and railways unusable.轰炸使得公路和铁路都无法通行。 |