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  • 更新 2022-09-03
  • 科目 英语
  • 题型 填空题
  • 难度 中等
  • 浏览 1283

Valentine’s Day is the time of the year when couples show their love for each other by sending cards,flowers and chocolates. Its origins are________(clear) and hidden in the river of time.

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Valentine’sDayisthetimeoftheye