短语讲解：
1. Moneyball is based on a true story.
base on使建立在…基础上
例句：These charges are based on facts.
这些指控是基于事实。
2. While the A's scouts set out to recruit young, unseasoned college and high school players to fill out the roster, Beane happened on young economist Peter Brand who used statistical analysis …a mathematical technique called "saber metrics" …to build an affordable team that could win games.
set out动身, 出发
例句：A visitor arrived just as we were setting out for the airport.
我们正要前往机场时来了一位客人。
