YSK that the color of the warning lights on your car's dashboard indicate the urgency of the problem
from /r/YouShouldKnow
YSK認爲，你的汽車儀表盤上的警告燈的顏色表明了問題的緊迫性
YSK認爲，你的汽車儀表盤上的警告燈的顏色表明了問題的緊迫性
YSK that the color of the warning lights on your car's dashboard indicate the urgency of the problem
from /r/YouShouldKnow