Across
- 5. a man-made fortification used for defense
- 8. having little contact with the outside world
- 9. new machines or technology that help people
Down
- 1. the main trade route in China
- 2. the gigantic mountain range in China
- 3. the huge desert in China
- 4. stories with a lesson
- 6. very old
- 7. an ancient Chinese philosopher and teacher