(160120) -- DAVOS, Jan. 20, 2016 (Xinhua) -- Journalists work at the media center of the 46th World Economic Forum (WEF) annual meeting in Davos, Switzerland, Jan. 20, 2016. The 46th WEF annual meeting will convene from 20 to 23 Jan. in Davos, under the theme of "Mastering the Fourth Industrial Revolution". (Xinhua/Xu Jinquan)