Another life

• 1. I'm mighty puzzled by this story of people making love while others twiddle their thumbs. I can't see how that fits in a depiction of German occupation during WWII. Or are these "moans" rather an allusion to torture? There must be something I'm missing there
• 2. lit; "to half-open [a door out of] our life [leading] to another life". The metaphor looks good and the alliterations sound nice in French, but I can't see how to render that in English
• 3. I translated the most straightforward equivalent I could think of, but that sounds a bit unusual in French. It could mean "speak at last like we dreamed to [all day]" or "speaking felt like dreaming". I must say all this does not evoke the reality of German occupation to me. I have the greatest respect for the French partisans, but they were very few. The song makes it look like everyone would plot against the Germans all day, which is an historical nonsense. Most people just tried to eke out a living, coping with the occupation the best they could.
• 4. depending on where you put the comma, that could mean "a famous song from elsewhere" or "a famous song, by the way".
  I feel like an idiot, but I couldn't identify the song he alludes to for the life of me. In the famous "Song of the Partisans" there is a line that goes "Friend, do you hear the muffled cries of a country thrown into chains?", but that's about the closest to "sighs" I can think of. You could certainly find plenty of sighs in pop songs of the era, but what would be the point in evoking a love song here? You could end up in jail for listening to the BBC in occupied France. Much worse could befall you if you were suspected to be part of a resistance network. So risking jail, torture or death listening to trifles - garbled by German jamming, besides - would have been of the utmost stupidity.
• 5. "traquer" is pretty unusual, like "hunt down". This sounds rather awkward to me. The BBC broadcasts were not difficult to find, they were just jammed by the Germans and thus difficult to hear. The main reason why people would not listen to them was the aforementioned serious danger of getting caught. Another reason was that the resistance only became massive after the Allied landings in 1944. Up until then, relatively few people would even want to listen to the BBC in the first place
• 6. There were curfews in French cities during WWII, so German troops were pretty much the only people you could find in the streets at night. The expression "occuper la nuit" can also be used in love songs, typically dreaming of a lover all night