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Lesson 64 The Channel Tunnel海峡隧道 First listen and then answer the question. 听录音,然后回答以下问题。 Why was the first tunnel not completed? In 1858, a French engineer, Aime Tho
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CCTV5 to become Olympic channel since Jan 1, 2008 China's CCTV5, the country's main sport channel, will become a 24-hour Olympic channel starting Jan.1st next year. It will become the major media window on preparations for the 2008 Beijing Olympics
Invasive species get a bad rapbut we humans are usually to blame for their spread. Take Japanese stiltgrass, an invasive that arrived from Asia nearly 100 years ago as a packing material for porcelain. When it creeps into forests, it forms dense carp
STEVE INSKEEP, HOST: When Hurricane Harvey dumped 50 inches of rain on Houston, the floodwater a drain somewhere. Much of it went to the Houston Ship Channel, and it brought along a lot of contamination. Now scientists are sampling the channel mud to