

У собаки, кажется, завелась блоха.
It looks like the dog has picked up a flea.
Кота нужно срочно вылечить от блох.
The cat urgently needs to be treated for fleas.
Блохи могут жить даже в ковре.
Fleas can even live in a carpet.
"блоха" is in the lesson "Insects" (Level 16), along with 21 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.