

It's dark outside already.
[ˈɪts ˈdɑrk ˌaʊtˈsaɪd ɔlˈrɛdi.]
She has long dark hair.
[ʃi həz ˈlɔŋ ˈdɑrk ˈhɛr.]
Is the room too dark for you?
[ˈɪz ðə ˈrum ˈtu ˈdɑrk fər ˈju?]
"dark" is in the lesson "Properties" (Level 26), along with 9 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.