

It's thirty-five degrees Celsius outside today.
[ˈɪts ˈθɜrtiˈfaɪv dɪˈɡriz ˈsɛlsiəs ˌaʊtˈsaɪd təˈdeɪ.]
Is that temperature in Celsius or Fahrenheit?
[ˈɪz ˈðæt ˈtɛmprəˌtʃʊr ˈɪn ˈsɛlsiəs ɔr ˈfɛrənˌhaɪt?]
In July it often reaches forty degrees Celsius here.
[ˈɪn dʒʊˈlaɪ ɪt ˈɔfən ˈritʃəz ˈfɔrti dɪˈɡriz ˈsɛlsiəs ˈhɪr.]
"celsius" is in the lesson "Hot weather" (Level 15), along with 12 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.