the field in which we can cooperate 中 in 是 和谁搭配的

the field in which we can cooperate 中 in 是 和谁搭配的 on the field 和 in the field的区别是什么? Which of the following can we do in the zoo? 是in the field还是on the field Why can we gko on a field trip in spring Why can we go on a field trip in spring? field的用法“在地上”怎么说?in the field 和in the fields有什么区别?不会是“在一块地上” in the field 是什么意思 in the field on the field Which room we can not live in? 英语结构分析和理解we might marvel at the progress made in every field 英语句子分析和理解we might marvel at the progress made in every field