How the word "sauer" is translated into English
Die Zitrone ist sehr sauer.
[ˈdiː tsiˈtroːnə ˈɪst ˈzeːɐ̯ ˈzaʊ̯ɐ.]
The lemon is very sour.
Ist der Apfel zu sauer für dich?
[ˈɪst deːɐ ˈapfl̩ ˈtsuː ˈzaʊ̯ɐ ˈfyːɐ̯ ˈdɪç?]
Is the apple too sour for you?
Die Milch ist leider sauer geworden.
[ˈdiː ˈmɪlç ˈɪst ˈlaɪ̯dɐ ˈzaʊ̯ɐ ɡəˈvɔrdn̩.]
Unfortunately, the milk has gone sour.
"sauer" is in the lesson "Seasoning" (Level 12), along with 16 other useful words. LinDuo has 180 topic lessons like this one, 2,375 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.