off-track造句

1、Like what? Jujitsu and off-track betting?
好比学柔术和场外 * ？

2、A place where off-track bets are taken
场外赛马 * 的下赌注处

3、A book in which off-track bets are recorded
赌注登记簿一本场外赛马 * 的赌注登记薄

off-track翻译