She is an expert in the field of computer science.

她是计算机科学领域的专家。

The kids are playing soccer on the field.

孩子们正在操场上踢足球。

They planted corn across the entire field.

他们在整块地里种玉米。

The horse is running in the field.

那匹马正在田野里奔跑。

He works in the medical field.

他在医学领域工作。