Elementary field is a field that is not normally subdivided during processing.

基本字段是指正常情况下在处理中不能进一步分割的一种字段。

youdao

And if you work in a field like elementary particle physics you won't even have the satisfaction of doing something that is immediately useful.

而如果你研究的是象基本粒子物理学这样的领域，你甚至没有是在从事一种马上就有用的工作所带来的满足。

youdao

All these events belong essentially to the field of two-person psychology and are more elementary than those belonging to the three-person Oedipal level.

所有这些事件本质上属于两个人心理学领域，比那些属于三人的恋母情结的水平更基本的。

youdao

The children were students at Peter Hobart Elementary School who were at the park by the Mississippi River on a field trip.

CNN: 2 children dead after gravel slide at Minnesota park

It followed a familiar script, one which rather sums up these two teams right now: Liverpool took the field with plenty of passion, but reaped less than it sowed because of some elementary mistakes.

WSJ: Manchester United, Liverpool Make a Pitch for Empathy: Marcotti on Soccer