WHO's urgent needs are focused on support for countries to improve vital surveillance systems, strengthen early warning systems and build communications capacity.

世卫组织的紧急需求注重于支持各国改进关键性监测系统，加强早期预警系统和建设通讯能力。

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The severity can be marked as info (purely for information), warning, error, critical (a serious problem that needs addressing), and even emergency (the system needs urgent help).

可以将严重性标记为信息（纯信息）、警告、错误、重要（需要解决的严重问题）甚至紧急（系统需要紧急帮助）。

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They broadcasted an urgent storm warning.

他们广播了一条紧急风暴预告。

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Last week, Lady Thatcher issued a no less urgent warning about the abiding need for American military might and international leadership.

CENTERFORSECURITYPOLICY: Center For Security Policy

Read his urgent warning now.

FORBES: Lessons From Black Monday

Now Mundell is back, warning about the urgent need to restore stability to the global monetary system and calling on governments to reinstate hard money.

FORBES: Magazine Article