According to the query, Baidu Encyclopedia, Beidan, the full name of Beijing Single Bureau, is a kind of lottery, a single football lottery issued in Beijing. It is an entertaining football lottery game issued by Beijing Sports Lottery Management Center.
Lottery, also called lottery, is a way to raise money by drawing lots to win prizes, not gambling. The English name of the lotteryticket is "Lotteryticket". Cihai (version 1999) explains lottery tickets as follows: "Commonly known as' pigeon tickets'. A voucher issued by a lottery ticket to raise funds or raise funds. "