買わなきゃ当たらないを英語でなんと言うか？

宝くじは買わなきゃ当たらないはyou gotta be in it to win it.が決まり文句です。1:51 you gotta be in it to win it.

http://www.youtube.com/watch?v=O20G4PYq9No&feature=related 1:29 you gotta be in it to win it.
http://www.youtube.com/watch?v=fIZ-LKJflf0  0:30 you gotta be in it to win it.

1:19 you gotta be in it to win it.

We tried to buy people's Powerball tickets

練習問題解答
a-9877 she was in it to win it.
b-0438 I'm in it　　注；in a minute　と韻を踏んでいる。