紧急

紧急

"紧急" means "urgent" or "emergency."

In this sentence, '紧急' is used as an adjective to describe the severity of the situation, indicating an immediate need for action.

这个情况非常紧急，我们必须马上采取行动。

This situation is very urgent; we must take action immediately.

Here, '紧急' modifies the verb '联系,' emphasizing the urgency in contacting someone to resolve the issue.

请紧急联系相关人员解决问题。

Please urgently contact the relevant personnel to address the problem.

In this case, '紧急情况' forms a noun phrase, referring specifically to emergency situations or scenarios.

如果发生紧急情况，请拨打这个号码。

If an emergency occurs, please call this number.