

I have one brother and two sisters.
[aɪ ˈhæv ˈwən ˈbrəðər ənd ˈtu ˈsɪstərz.]
Can I have one coffee, please?
[kən aɪ ˈhæv ˈwən ˈkɔfi, ˈpliz?]
I don't need one bag, I need two.
[aɪ ˈdoʊnt ˈnid ˈwən ˈbæɡ, aɪ ˈnid ˈtu.]
"one" is in the lesson "Numbers" (Level 3), along with 19 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.