"Today is an extremely warm day."
Translation:Aujourd'hui est une journée extrêmement chaude.
It would be better to supply a short answer, with the link provided as additional support & further reading. The Android app does not display the URL as a hyperlink, so it can't be clicked. The app doesn't provide copy/paste for comments, so the URL can't be copied. Plus, links can break in the future. (9 Mar 2014)