The virtual Wall rescue数字技术助力长城修复Running for more than 20,000 kilometers, the Great Wall is a historical landmark of unparalleled glory, but climbing it is hard work.绵延两万多公里的长城是无与伦比、宏伟雄壮的历史地标,但要爬上去却没那么容易。Not everyone has the stamina to navigate its tall steps and steep slopes, while only a handful may have the expertise to physically participate in the restoration of this UNESCO World Heritage Site.非所有人都有耐力去攀爬高耸陡峭的长城,而且也仅有小部分人拥有专业技能,可以实地参与到被列入联合国教科文组织世界文化遗产名录的长城的修复中。However , a recently launched
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