事实：代奥米德群岛-The Diomede Islands: Tomorrow Island & Yesterday Isle
时间：2016-01-04 03:15:35
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（单词翻译）
Pre-Listening Vocabulary
strait: a narrow waterway
The International Date Line: an imaginary line in the middle of the Pacific Ocean where the time zones on either side are 24 hours apart
border: a line that defines the ownership of a region
time zone: one of 24 divisions of time around the world
nickname: to call a person or thing a fun, shortened, or
memorable1 name
The Diomede Islands: Tomorrow Island & Yesterday Isle2
Big Diomede and Little Diomede are two islands in the Bering Strait between Alaska and Siberia. Big Diomede belongs to Russia and Little Diomede belongs to the US. The International Date Line runs in between the islands and acts as an international border. Even though the distance between them is only four kilometres, they are 21 hours apart due to local time zones. For this reason, they were nicknamed Tomorrow Island (Big) and Yesterday Isle (Little). In the winter, the rocky flat-topped islands are sometimes connected by an ice bridge.
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