010 是北京的 city code。但city code 并不单指电话区位号,还可以指别的,例如邮政编码等等。所以 如果想明确表达长途电话的区号,可以使用更明确的词:long-distance code 以下是美国人写的几个标准的句子: To dial long-distance locations, one must have a long-distance authorization code. Use a long-distance code to dial internationally Dial 9 + 011 + country code + city code + local number + # System will pause for entry of long-distance code Enter the long-distance code + #, and the call will complete