漫天: 1.(布满天空) filling the whole sky; all over the sky 短语和例子漫天大雾 a dense fog obscuring the sky; 漫天飞雪 whirling snow; 风刮尘土漫天扬。 the dust was blown about all over the sky by the wind.2.(无限度的) boundl
发大雾信号: sound fog signal for two seconds every twenty seconds
大雾山国家公园: great smoky mountains national parkgreat smoky mts. nat. park