day 1

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Across
  1. 2. problem that confuses you
  2. 4. look for
  3. 7. a.公众的
  4. 8. able to buy or use
  5. 9. give up
  6. 11. noun of "free"
  7. 13. easy
Down
  1. 1. study
  2. 3. its meaning is similar to "characteristic"
  3. 5. n.图像；形象；影像；意象 v.反映；想像；象征；使…成像
  4. 6. adj. 私人的
  5. 10. traveling across a shallow area in a stream that can be forded
  6. 12. to copy or move programs or information into a computer's memory