A

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Across
  1. 3. Maybe
  2. 6. The reason why the water is dirty
  3. 7. Time that comes after the present
  4. 9. sth we must protect to save the earth
  5. 10. 🌍
Down
  1. 1. The space above the ground
  2. 2. I maybe become an astronaut one day.
  3. 4. talking about future
  4. 5. 行星
  5. 6. No war
  6. 8. Salt water