However, every automobile has a finite time to be safely used, its performance will degrade greatly if it has been run in excess of a certain miles or time, and it is forced to be discarded as useless.
然而,汽车的使用寿命有限,当汽车行驶达到一定时间或里程后,其性能大大降低,必须实行强制报废。
参考来源 - 基于EPR的报废汽车回收体系研究·2,447,543篇论文数据，部分数据来源于NoteExpress
According to the miles shown on the odometer, the car should be discarded as useless.
按照里程表显示的公里数，这辆车已经该报废了。
The jammed pipes were usually discarded as useless, which caused a big loss of economy.
传统的处理方法是将这些堵塞的油管报废，结果造成很大的浪费。
Quite a few of these patterns can be discarded as useless towards the absolute most of the guitar repertoire.
其中很少的组合可以作为与吉他曲目无关的组合而忽略。
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