积年

jī nián yǐ jiǔ de gé hé

积年已久的隔阂

long-standing estrangement

jī nián yǐ jiǔ de zhēng duān

积年已久的争端

age-old dispute

yī xiē jī nián jiù àn

一些积年旧案

some law cases which have piled up over the years

jī nián lěi yuè

积年累月

year after year