After joining the workforce for a couple of years,Mr.Takanashi returned to.a couple

After joining the workforce for a couple of years,Mr.Takanashi returned to.a couple
After joining the workforce for a couple of years,Mr.Takanashi returned to.
a couple

After joining the workforce for a couple of years,Mr.Takanashi returned to.a couple
概数,“几年”

a couple of years是"几年"的意思

两个,几个
句中应当是"几年"的意思

就是两年的意思，不是几年

several years

几年。a couple of 意思是几个，几