You can imagine a similar algorithm for an internationalnumber with a country code.
您可以想象到通过类似的算法根据国家代码识别国际电话号码。
2
For example, if you are prompting for a phone number, you might allow users to enter a local number, a long-distance number, or an internationalnumber.
例如，当提示输入电话号码时，您可以允许使用者输入本地号码、长途电话号码或国际电话号码。
3
The number of international students who came to western countries has greatly increased in recent years.