

娘がおたふくにかかって、ほっぺたがはれています。
子どものころ、おたふくになったことはありますか。
大人になってからおたふくにかかると、大変らしいですよ。
"おたふく" is in the lesson "Sickness" (Level 9), along with 17 other useful words. LinDuo has 180 topic lessons like this one, 2,379 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.