名词
中文翻译：Unknown
同义词：
['prognostic', 'forewarning', 'early warning']
例句：
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1. The premonitory signsof an earthquake were already visible in thesky.
地震的前兆已经在天空中显现了。
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2.The early warning system was activated to preventa disaster.
早期预警系统被激活以防止灾难发生。
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3. The prognostic model predictedthat the temperature would rise significantly this year.
预测模型预测今年的温度将显著上升。