About the translation of the refrain of Bella Ciao: "Ciao" means either hello or goodbye in Italy. In this context, rather than "Hello fair lady, hello, hello," which implies a meeting, I believe it means "Goodbye my fair one, goodbye, goodbye." This strengthens the idea that the singer is going out as a partisan to fight the invaders, and is saying goodbye to his sweetheart, and reminding her that he may die in the fighting. It changes the feeling of the song.