Warning flags at stations throughout town, he said, announce the risk level of an eruption, from green, indicating low danger, to red, meaning an eruption is imminent.
他表示，观测站的预警标识在戈马城到处都有，这些标识会显示喷发的风险等级，绿色代表低危险性，红色则代表喷发即将来临。
Warning flags at stations throughout town, he said, announce the risk level of an eruption, from green, indicating low danger, to red, meaning an eruption is imminent.
他表示，观测站的预警标识在戈马城到处都有，这些标识会显示喷发的风险等级，绿色代表低危险性，红色则代表喷发即将来临。
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