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《国家地理.伟大工程巡礼系列E31.改造波士顿》(2003)原名《National.Geographic.MegaStructures.Boston's.Big.Dig》字幕下载
In a series of engineering firsts, two interstate highways are being rebuilt beneath Boston, sending its traffic 120 feet underground! The "Big Dig" will take more than 30 years to build, but not without confronting unprecedented challenges.| 日期 | 资源名称 | 类型 | 语言 | 下载 |
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