

Caí e magoei o joelho.
Dói-te o joelho hoje?
O meu avô tem problemas no joelho.
"o joelho" is in the lesson "Body parts 2" (Level 25), along with 8 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.