Use pinyin to fill out the crossword

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Across
  1. 4. nearby
  2. 5. satisfied
  3. 8. garbage
  4. 9. terrible
  5. 11. environment
  6. 14. traffic
  7. 15. street
Down
  1. 1. to pass
  2. 2. cleaner
  3. 3. to clean up
  4. 6. mayor
  5. 7. everywhere
  6. 10. to solve
  7. 12. pedestrian
  8. 13. crowded