

Tens de derreter o chocolate antes de juntar o leite.
O gelo derreteu e o sumo ficou aguado.
Deixa o açúcar derreter em lume brando.
"derreter" is in the lesson "Drinks" (Level 40), along with 11 other useful words. LinDuo has 180 topic lessons like this one, 2,380 words in total. Every word has an illustration, a transcription and pronunciation in a female and a male voice. Just 10–15 minutes a day is enough to learn them all. Free, and works offline.