几年来

• for the past several years

例句

1. 几年来他的理论一直保持着权威地位。
   For several years his theory held the field.
2. 几年来人们一直在私下议论政府。
   For some years the people had been murmuring against the government.
3. 几年来，几百个留学生在那所大学学习过。
   Over the years, hundreds of overseas students have studied at that university.