"MINORS ARE PROHIBTED BY LAW TO ENTER INTERNET CAFE"
"MINORS ARE NOT ALLOWED TO ENTER INTERNET CAFE--BY LAW"
"BELOW 18 ARE NOT ALLOWED ENTRY--BY LAW"
"minors" =未成年人
"not allowed" = 不允许
"prohibited" =被禁止
"juveniles" = 少年(专指犯罪/不良的少年)