ZZZ is the country code.

zzz是国家代码。

youdao

IN our example, we use IN, which is the country code for India.

在我们的示例中，我们使用的是IN，它是印度的国家代码。

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The flow overrides the dummy map at runtime based on the country code in the incoming message.

该流在运行时根据收到消息中的国家代码重写虚拟映射。

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Islamic leaders said the new code contains provisions that are an affront to the country's traditional values and religious beliefs.

VOA: standard.2009.08.27

But a section of the country's labor code states that women should not do "hard,physical" labor that entails harmful or dangerous conditions.

VOA: standard.2009.11.05

The Report criticises most of the 19 country code IDNs currently operating for failing to capture the public imagination.

UNESCO: MEDIA SERVICES

We will all happily abide by the recently issued Country Code on the foot and mouth subject, provided the landowners also open paths, where it is reasonable and low risk to do so, in accordance with this code.

BBC: Is it too early to go back to the countryside?

The standard Russian country code top-level domain ".ru" has been joined by the Cyrillic alphabet rendering of ".rf".

BBC: Russia country profile