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用了六年的笔记本电脑，还有必要保养吗？
source link: https://www.v2ex.com/t/608801
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问与答 - @upcliucong - 13 年买的戴尔 inspiration15-3521，六年了，日常办公无压力。但是键盘（应该是以前饮料洒上去导致的）回车键经常会自己触发，屏幕亮度也下降了很多，电池待机从 6 小时下降到 2 小
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