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[今日口语] She is in a quandary about which university to choose.

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continental shelf

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n.[地质]大陆架
  1. The water above the continental shelf is moved by the tides and by estuarine currents
    潮流和河口流使大陆架上的海水流动。收藏

名词解释:

  • the relatively shallow (up to 200 meters) seabed surrounding a continent
 
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