The Wheel in the School

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Across
  1. 3. untangle
  2. 5. slow and clumsy because of great weight
  3. 7. part of a bicycle wheel
  4. 8. walk slowly with heavy steps
Down
  1. 1. dark shape against a lighter background
  2. 2. talk fast
  3. 4. expressing great triumph of happiness
  4. 5. a bird cleaning itself with its beak
  5. 6. poke with a pointed object