历年

lì nián lái wù jià bù duàn xià jiàng

历年来物价不断下降。

The price of goods has fallen constantly over the years.

lì nián de chéng jiù

历年的成就

achievements over the years

tiān wén xué shàng yòng lì nián jì lù shí jiān

天文学上用历年记录时间。

Astronomy uses calendar years to record time.