Across
- 2. 旅游业
- 4. 交通工具
- 5. having a lot of people
- 8. the state of being poor
- 9. 之前的
- 13. you can find on a bird
- 15. luckily
- 17. 相似性
- 18. 污染的
- 19. an event causing a lot damage
- 21. the way where cars travel at a high speed
Down
- 1. 位置
- 3. an act of giving sth to sb and recieve sth
- 6. object,such as tables,chairs
- 7. 可能性
- 10. 广阔的
- 11. 测量
- 12. an object holding a dead body
- 14. an natural disaster
- 16. 无家可归的
- 20. 经历