1. Tom qab lub rhaub dej ua haujlwm rau ib lub sijhawm (raws li tus neeg siv khoom siv), lub tshuab hluav taws xob yuav tsum tau unscrewed los ntxuav cov pa roj carbon monoxide.Yog hais tias lub ignition plug raug hlawv, nws yuav tsum tau muab tshem tawm thiab hloov nrog ib tug tshiab ignition plug.2, yog tias cov pa roj carbon deposit ntau dhau, ca ...
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