Passengers for FU6640 (Sanya-Zunyi-Harbin) were seen re-boarding. Hainan is commonly joked as the "4th province of the northeast".
<a href="//commons.wikimedia.org/wiki/User:N509FZ" title="User:N509FZ">N509FZ</a>
<span class="int-own-work" lang="en">Own work</span>