在人与大自然的不停的抗争中,有一种大自然的力量对人类产生严重威胁,那就是火山爆发。它袭击毫无戒备的人类,摧毁他们所拥有的一切。它能使白天变成黑夜,使空气剧烈燃烧,使平静海面掀起几十米高巨浪,它的到来还常常伴随着地震和泥石流。它带着翻腾的火山灰云,致命的气体和能够覆盖 In the constant struggle between man and nature, there is a serious threat to mankind from the forces of nature, that is, volcanic eruptions. It attacks unsuspecting humans and destroys everything they have. It turns daytime into night, burning the air so sharply that waves of dozens of meters are off the calm sea, often accompanied by earthquakes and mudslides. It carries a cloud of volcanic ash, deadly gas and can cover it