v. 学习；研究（study的ing形式）

n reading carefully with intent to remember

v consider in detail and subject to an analysis in order to discover essential features or meaning

v be a student; follow a course of study; be enrolled at an institute of learning

v give careful consideration to

v be a student of a certain subject

v learn by reading books; I must hit the books now"

v think intently and at length, as for spiritual purposes