A young couple show their marriage certificates at a civil affairs bureau in Zaozhuang City, east China's Shandong Province, Dec. 12, 2012. Young couples across the country rushed to get married on Dec, 12, 2012, or 12/12/12, hoping that the "triple 12 day" will bring them good luck. In Chinese, the number 12 is pronounced like "Yao Ai", meaning "To Love" in English. [Xinhua]