Thanks!

translation to what ?

it means that you can't resist doing it > i cant help feeling sorry for him means i cant resist feeling sorry about him or i cant prevent myself to feel sorry about him .

it means that you can't resist doing it i cant help feeling sorry for him means i cant resist feeling sorry about him or i cant prevent myself to feel sorry about him .

can't help doing something means you can't control yourself to do something (which you desire to do or have to do)