如果暑假里,你有机会去美国旅行的话,黄石公园是绝对不容错过的,那里迷人的夏日风光会令你终生难忘。更吸引人的是,黄石公园除了有极其丰富的动植物资源外,在公园下面还有一个巨大的岩浆库——一座沉睡了64万年的超级活火山。没有人知道这个超级火山什么时候会再次喷发,连世代生活在公园里的小动物也不知道。这座超级火山几十万年来影响着公园里动植物的生存环境,听说一旦它再次爆发,不仅黄石公园会被毁灭,还会引发地 If you have a chance to travel to the United States during the summer, you should not miss out on Yellowstone Park, where charming summer scenery will make your stay unforgettable. Even more attractive is that in addition to Yellowstone Park is extremely rich in animal and plant resources, there is also a huge underground magma in the park - a super-active asleep for 640,000 years. No one knows when this super-volcano erupts again, and even little animals that live in the park for generations do not. This super-volcano has influenced the living environment of animals and plants in the park for hundreds of thousands of years. I heard that once it breaks out again, not only will Yellowstone Park be destroyed, but also