题目内容
A—School ZoneB—Vendors ProhibitedC—Pass on LeftD—Don't Step OnE—Keep Away for SafetyF—Service AreaG—Administrative AreaH—Watch Your HandI—Please Don't Leave Valuables UnattendedJ—Maintenance in ProgressK—Out of ServiceL—Stand on RightM—Break Glass in EmergencyN—Don't TouchO—Keep Clear of the DoorP—Don't Exceed Speed LimitQ—Icy Road______当心夹手 ______请勿登踏
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