Original: In two arias (Rodolfo's Che gelida manina   "What a cold little hand" and Mimì's Sì, mi chiamano Mimì   "Yes, they call me Mimì"), they tell each other about their different backgrounds.
Simplified: In two very famous arias (Rodolfo's "Che gelida manina — What a cold little hand" and Mimi's "Sì, mi chiamano Mimì — Yes, they call me Mimì"), they tell each other about their different backgrounds.