Ring, happy bells, across the snow.
响吧，幸福的钟，响彻皑皑白雪。
Ulf Buentgen and his team of researchers at the Swiss Federal Institute for Forest, Snow and Landscape Research collected tree-ring data from ancient wood found in medieval castles and Roman ruins.
来自瑞士联邦学院的Ulf Buentgen教授和他的研究队伍从中世纪古堡和罗马城废墟中搜寻古代的木头，企图收集关于树木年轮的信息。
When Frodo falls on the snow and loses the ring, a close-up of the ring with Frodo in the background is shown.
当弗罗多掉在雪堆里把戒指弄丢时，魔戒的一个特写和弗罗多同时出现在画面上。
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