Area code 解析：

音标：/ˈɛə.riə kəʊd/

含义：

Area code 是指一个地理区域内的电话号码前缀，通常用于区分不同的地区或城市。

在电话拨号中，区域代码帮助电话系统识别目标地点。

翻译：

Area code：区号

用法：

电话：在拨打长途电话时，需要加上区域代码。

编码：区域代码是数字编码，通常由三位数字组成。

例句：

To call a different city, you need to dial the area code first.

What’s the area code for New York City?

You can look up the area code for any region online.

The area code for Los Angeles is 213.

Please make sure to include the area code when dialing long-distance.

Area codes are often used to identify a region or city in the country.

Different countries have different ways of assigning area codes.

When traveling abroad, you may need to add an international dialing code before the area code.

She changed her phone number but kept the same area code.

Some area codes are becoming exhausted due to population growth.

短语搭配：

International area code：国际区号

Area code directory：区号目录

Dial area code：拨打区号

Area code prefix：区号前缀