Bingo编号范围从1到75，以15个编号为一组(1 -15分配给b,16 - 30分配给i等等)。
Bingo Numbers run from 1 to 75, broken up into groups of 15 (1-15 assigned to b, 16-30 assigned to I, etc.).
Bingo编号范围从1到75，以15个编号为一组(1 -15分配给b,16 - 30分配给i等等)。
Bingo Numbers run from 1 to 75, broken up into groups of 15 (1-15 assigned to b, 16-30 assigned to I, etc.).
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