铁的电化学腐蚀方程式:in the field

in the field in the field 还是in the fields? 英语谜语1.What table is in the field? persons who keep watch in the wheat field是什么意思？ The two brothers work in the field while their w_______ do the homework 填什么 翻译出来 社会学人类学高手清进：What are the gender issues in participant observation (or field research) Debby is the cat's meow in her field.的翻译 the area of the football field report to the advaced field tactcs area? basketball,we,field,play,on,the(.)