Noun:
a branch of knowledge;in what discipline is his doctorate?
teachers should be well trained in their subject
anthropology is the study of human beings
近义词 study研究field田地subject话题discipline纪律subject area主题范围subject field专题领域bailiwick市镇官管辖区…
Afield of studychosen as an academic specialty.专业，主修课选作学术专业的一个研究领域