Cai Xiulan, third from left, from Beijing Volunteer Service Federation celebrates birthday of some volunteers at the China National Convention Center at the 2014 Asia-Pacific Economic Cooperation (APEC) Economic Leaders' Week in Beijing, Nov 6, 2014. The 2014 APEC Economic Leaders' Week starts from Nov 5 to 11 in Beijing. [Photo by Feng Yongbin/Asianewsphoto]