

Die Prüfung war sehr schwierig.
[ˈdiː ˈpryːfʊŋ ˈvaːɐ̯ ˈzeːɐ̯ ˈʃviːrɪç.]
The exam was very difficult.
Ist Deutsch wirklich so schwierig?
[ˈɪst ˈdɔɪ̯tʃ ˈvɪrklɪç ˈzoː ˈʃviːrɪç?]
Is German really that difficult?
Die Hausaufgabe ist nicht schwierig.
[ˈdiː ˈhaʊ̯sʔaʊ̯fˌɡaːbə ˈɪst ˈnɪçt ˈʃviːrɪç.]
The homework isn't difficult.
"schwierig" is in the lesson "Adjectives 2" (Level 4), along with 17 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.