Only Clelver Person Can Solve This

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Across
  1. 1. all of some numbers
  2. 3. a zone
  3. 6. object that be lift
  4. 7. body's part
  5. 8. the lowest space
  6. 10. idea
  7. 11. solid object
  8. 12. makenumber bigger
Down
  1. 1. have four right angles
  2. 2. how high
  3. 4. two or more numbers togther
  4. 5. objects that be fabricated
  5. 7. long mark
  6. 9. make number smaller