haven’t seen each other in years
十六年没见了
We haven’t seen each other in sixteen years.
— 三峡好人 (2006)
咱俩可有好几年没见了吧
It’s been several years since we last saw each other, hasn’t it?
— 洗澡 (1999)
多少年没见了表姐
It’s been so many years since we last saw each other, cousin.
— Hi, Mom (2021)
我们有多少年没见了？
How many years has it been since we last saw each other?
— 一一 (2000)