The irony is that the lesson had to be relearned a century later.
具有讽刺意味的是，一个世纪后这个教训必须重新学习。
The language just needs to be reactivated and aspects of it relearned.
语言只是需要被再次激活便会像我们重新学习到的一样。
Now that this truth has been un-learned, there is the real fear and strong expectation that it cannot be relearned.
既然这个事实一直没有被了解，也就有着真实的恐惧和强大的预期：它也不会被再次了解。
Be patient with new local businesses — quality craftsmanship and quality service are lost arts, that will need to be relearned.
对新兴的本地企业要有足够的耐心——高品质的工艺和优质的服务往往会缺乏一些艺术性，这只需要再学习就可以了。
Old methods of cutting and carving had to be relearned, but most challenging was unlocking the 18th-century mystery of dyeing amber, a process essential to enhancing the Amber Room' s beauty.
古老的切割和雕刻技术需要重新学习，但最富挑战性的是揭开18世纪琥珀染色之谜，这是一种为琥珀厅锦上添花所必不可少的工艺。
Old methods of cutting and carving had to be relearned, but most challenging was unlocking the 18th-century mystery of dyeing amber, a process essential to enhancing the Amber Room' s beauty.
古老的切割和雕刻技术需要重新学习，但最富挑战性的是揭开18世纪琥珀染色之谜，这是一种为琥珀厅锦上添花所必不可少的工艺。
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