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