What is the important milestone in world tourism?
举一反三
- What’s the date of World Tourism Day?
- In advertising world it is important to “think out of box.” What is the meaning of that?
- What one considers to be the important views about the world are based on___________.
- 中国大学MOOC: what is milestone for 12-months baby?
- What is the definition of the tourism guideboard?