大一学生:freshman
大二学生:sophomore
大三学生:junior
大四学生:senior
一般不说:grade one, two...
my freshman year;my first year in college/in the university 大学一年级
my sophomore year;my second year in college/in the university大学二年级
my junior year;my third year in college/in the university大学三年级
my senior year;my fourth year in college/in the university 大学四年级
first/second year in college
大一学生 freshman
大二学生Sophomore
大学一年生,大学二年生
だいがくいちねんせい
だいがくにねんせい