in the fields意思是在田野里。fields：n. 田; 地; 牧场; (作某种用途的)场地; (覆盖…的或有…的)大片地方。v. 使参加竞选; 使参加比赛; 担任守队(队员); 任守方; 接，截，传(球)。field的第三人称单数和复数。

相关介绍：

Most of the time, they slouch around in the fields

他们绝大多数时间都无精打采地走在田间。

Exciting artistic breakthroughs have recently occurred in the fields of painting, sculpture and architecture

绘画、雕塑和建筑领域最近出现了激动人心的艺术突破。

Lunch was a snack in the fields.

午饭是在野外吃的`便餐。

The stubble was burning in the fields.

地里的麦茬正在燃烧。

There were about 300 million tons of grain in the fields at the start of the harvest.

收获伊始地里大概有3亿吨粮食。