Unit 4 Save trees

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Across
  1. 4. The same meaning as "main".
  2. 6. carry
  3. 9. dig
  4. 11. discuss
  5. 12. Make something become easy.
  6. 13. example
  7. 15. save
  8. 16. harmful
  9. 18. gas
Down
  1. 1. It means "make".
  2. 2. oxygen
  3. 3. branch
  4. 5. against
  5. 7. furniture
  6. 8. The same meaning as "illness".
  7. 10. It means "think".
  8. 14. pine
  9. 16. hole
  10. 17. fight