三年目 san nen me - the third year in general
三年生 san nen sei - the third year in a cursus
Third year class is "san nen sei." University is "Dai gaku"
I would probably say, "Dai gaku no (of) san nen sei."
I just checked in a dictionary, and it's correct. Junior year is san nensei.
But I think that shou gaku (primary school) third grade student is also a san nensei.
I assume you meant student. So there ya go. Replace the "san" with 1 (ichi) ,2 (ni) , or 4 (in this case 'yo') and you get the other student year/grade.Source(s): we so just went over that on japanese midterm 😉
There is no "no" between "daigaku" and "sannensei"Source(s): Studied abroad in Japan