单词:
单词: 相关文章
Have you ever considered sky divin [00:03.08]Thousands of people learn to sky dive each yea [00:06.82]The first major step to learn is proper touch down techniqu [00:11.57]That means learning how to fall properly,initially from a four-foot platfor [0
Researchers witnessed a spectacular fiery(炽热的) underwater volcano explosion and captured it on video. It's believed to be the deepest ocean volcano eruption ever recorded. The undersea Pacific Ocean explosions in May of this year were recor
Since the 18th century, St. Louis, Missouri has offered travelers a hub to begin their adventures into the western frontier. Its nickname the Gateway to the West is symbolized by the towering focal point of the St. Louis skyline: the Gateway Arch. It
The two steel truss arch halves of an extra-big bridge over the Lancang River were connected Tuesday morning after two vertical turns. The bridge, which sits 270 meters above the Lancang River, is a part of the DaliRuili Railway in southwest China's
Researchers witnessed a spectacular fiery(炽热的) underwater volcano explosion and captured it on video. It's believed to be the deepest ocean volcano eruption ever recorded. The undersea Pacific Ocean explosions in May of this year were recor