Through three years of study, has mastered the knowledge and passed the course examination.

通过三年学习，现已掌握了所学知识，并通过了有关课程考核。

youdao

After another two or three years of study, they may get a still higher degree as doctor of philosophy.

再二、三年的研究后，他们可能得到更高的学位成为博士。

youdao

Our laboratory has made more than three years of study in this aspect and already designed two sets of systems.

本实验室对此已经进行了三年多的研究，曾先后设计出两套系统。

youdao

In nineteen eighty-three, he began to study more than twenty-two thousand healthy male doctors over forty years of age.

VOA: special.2009.10.20

Graduates of study programs at most foreign medical schools may have to complete two or three years of residency, although there are exceptions.

VOA: special.2009.06.02

And,all of the students were required to study for four years instead of three.

VOA: special.2010.06.27

After three years of study, the government has come up with some recommendations.

CNN: SINGAPORE

On winning the Tchaikovsky competition in 1990, Boris Berezovsky left Russia after only three years of study at the conservatory.

ECONOMIST: Classical music in Moscow

They must hold a state license and a doctor of pharmacy degree from an accredited program, earned after two or three years of postsecondary study.

FORBES: 1. Pharmacist