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A typhoon may still be far away when adults hear an early warning on the news or phone.
有时候台风明明还离得很远，大人却已经在新闻或手机里看到了预警。正文预览
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That happens because typhoons are large storms that can affect wide areas before and after the center arrives.
这是因为台风是一种范围很大的风暴，它带来的影响常常会在中心到来前后持续很久。
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Weather teams watch clouds, wind, pressure, ocean temperatures, and satellite images to track a storm's movement.
气象人员会通过云图、风向、气压、海水温度和卫星影像，持续追踪风暴的移动。
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Forecasts are not guesses from nowhere. They are based on measurements, models, and repeated updates.
天气预报并不是凭空猜测，而是建立在测量数据、模型计算和不断更新之上的。
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Warnings come early so people have time to secure windows, store water, charge devices, and change travel plans.
预警之所以要提前发布，是为了让大家有时间关好门窗、储备饮水、给设备充电，并调整出行计划。
