从这篇文章中可以得到什么：
- Rosewood Phnom Penh opens today, nestled in the iconic 39-story Vattanac Capital Tower prominently located in the central cultural and business district along Preah Monivong Boulevard.
- In 2017, 178,800 flights took off and landed at Qingdao Liuting International Airport.
- Air Canada has been named the 2018 Eco-Airline of the Year.
