Translation

• this past year
• over the last years

Examples

• 这是 50 年来最热的夏天。
  This is the hottest summer we have had in fifty years.
• 他在街市卖鱼卖了许多年了，这些年来每逢星期二都会在街市见到他。
  For years he is at the market every Tuesday morning with his fish stall.
• 这发明是多年来耐心实验的成果。
  This invention was the result of years of patient experiment.