请大家将一句句子翻译成英语

I completed the three-year printer specialists courses in ... college.

I completed three years at the University of ... printing division training courses

I finished my printing training courses of 3 years in college.

i have finished the printing training courses of three years in college.

I had completed the training course of printing already while learning in the...university for three years.

hblp8284的答案比较准确，楼主可以把completed 换成finished,这样就完整了~