Two passengers take selfie with a working staff in costume of giant panda, as part of the celebrations of the 10th anniversary of Hainan Airlines' direct flight between Berlin and Beijing, at Berlin Tegel Airport in Berlin, capital of Germany, Sept. 5, 2018. China's Hainan Airlines celebrated here on Wednesday the 10th anniversary of its direct flight between Berlin and Beijing together with Berlin Tegel Airport. (Xinhua/Shan Yuqi)