英国纪录《BBC地平线系列:地心》（2011）完整版全集免费在线观看，Tristan Quinn自演，综合评分8.0分，For centuries we have dreamt of reaching the centre of the Earth. Now scientists are uncovering a bizarre and alien world that lies 4,000 miles beneath our feet, unlike anything we know on the surface. It is a planet buried within the planet we know, where storms rage within a sea of white-hot metal and a giant forest of crystals make up a metal core the size of the Moon.　　Horiz...