来, as in "a period of time+来", normally means 以来. I can't think of any exception if there was.大家好！
I recently heard this structure used on a TV show: 其实这么多年来
Does anyone know what 来 means here?
It is not a must to require (or forbid) a 了 in the following clause. You could apply a 了 whenever it is required in a sentence which contains the structure of "time period +以来".Thanks, hx1997! Does this structure require (or forbid) a 了 in the following clause?