英语翻译The motherboard has been burned out,can't repair.It has

来源：学生作业帮编辑：搜狗做题网作业帮分类：英语作业时间：2024/04/30 23:42:16

英语翻译
The motherboard has been burned out,can't repair.
It has been already used more than 10 years ,I propose to scrap it.
这个主板已经被烧坏了,不能修理.
它已经被使用了超过10年,我建议废弃它.

the motherboard has burned out and cannot be repaired.
It has been already used for more than 10 years.I propose scarping it.
再问：这里的repaired加ed的作用是变形容词还是时态呢？
然后下一句的for more than 10 years 为什么要用介词for呢？能不能大概说明一下？谢谢
再答： repaired 是过去分词，属于被动语态
表达持续一段时间要用for

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