On February 6, < a target = "_ blank" href=" https://news.163.com/news/search?keyword=%E7%BE%8E%E5%9B%BD "> US < / a > < a target ="_ blank" href=" https://news.163.com/news/search?keyword=%E4%BD%9B%E7%BD%97%E9%87%8C%E8%BE%BE%E5%B7%9E "> Florida < / a > < a target ="_ blank" href=" https://news.163.com/news/search?keyword=%E8%BF%88%E9%98%BF%E5%AF%86 "> Miami < / a > Mayor said, < a target ="_ blank" href=" https://news.163.com/news/search?keyword=%E9%A9%AC%E6%96%AF%E5%85%8B "> musk < / a > thinks that the boring company can build a 2-mile road for Miami < a target ="_ blank" href=" https://news.163.com/news/search?keyword=%E9%9A%A7%E9%81%93 "> tunnel < / a >, with a budget of only US $30 million, far lower than the previous estimate of US $1 billion.