1、Like what? Jujitsu and off-track betting?
好比學(xué)柔術(shù)和場(chǎng)外 * ？

2、A place where off-track bets are taken
場(chǎng)外賽馬 * 的下賭注處

3、A book in which off-track bets are recorded
賭注登記簿一本場(chǎng)外賽馬 * 的賭注登記薄

off-track翻譯