The story of the discovery will be featured on BBC Two's Digging for Britain on 14 January at 21:00 GMT, or on BBC iPlayer.
如今，行走在积石山，无论是集中安置点的崭新社区，还是原址重建的美丽乡村，处处能看到群众幸福的笑容，防止返贫致贫的牢固底线守护着他们对未来的美好憧憬。
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Not only do the team experience extreme cold, but summer in Antarctica also comes with non-stop daylight, ending with a sunset that lasts weeks.