Regarding the past, although it cannot be forgotten, one must learn to let it go
关于过去，虽然无法忘记，但必须学会放下。
该句使用让步结构表达对过去的接受与放下。
"There is no need to cling to the past"
"Do not dwell on the pages of the past"
"If you hold the past too tightly, how can you free your hands to embrace the present?"
"Life requires no regrets; things passed are like a passing breeze"
"If we could let go of the past, every day would be a fresh beginning."