to study meticulously; to delve into

to grind; study; research

see 井研縣|井研县[Jing3 yan2 Xian4]

to recommend sb for postgraduate studies; to admit for postgraduate studies without taking the entrance exam

teaching and research (abbr. for 教學研究|教学研究[jiao4 xue2 yan2 jiu1])

to research carefully; to study intensively

to sit an entrance exam for a graduate program

(of an organization etc) to independently develop (a technology or product)

to attend graduate school

to investigate and research; research; investigation

to study diligently