UVA rays are constantly present, no matter the season or the weather. If you think you can't get sun damage on a cloudy day, tell that to the UVA rays. They are so powerful that they also penetrate some clothing and even glass. (When was the last time you applied sunscreen before getting behind the wheel?)
Source: about.com article, UVA and UVB Rays
Does it mean When was the last time you applied sunscreen before getting into the sun?
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before each line. You may find many more formatting possibilities by clicking on the?
button at the top right of the box in which you enter your question. – StoneyB on hiatus Aug 25 '14 at 13:02