ballpark

1. N-COUNT A ballpark is a park or stadium where baseball is played. 棒球场

...one of the oldest and most beautiful ballparks in baseball. …最古老、最美丽的棒球场之一。

2. ADJ A ballpark figure or ballpark estimate is an approximate figure or estimate. 大概的[ADJ n]

I can't give you anything more than just sort of a ballpark figure. 我只能给你一个大概的数字。