

Tens de mastigar bem a comida, filho.
Não consigo mastigar esta carne, está muito dura.
O meu avô mastiga devagar por causa dos dentes.
"mastigar" is in the lesson "Eating" (Level 20), along with 9 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.