Translation:El poartă pantaloni și o cămașă.
It's 'trousers', I'm not interested in his, or anyone else's underwear! (yes, spot the English man).
Pants is ok in american english. Trousers is british.
Why is it o instead of un? I thought o was female
Yes, o is female, so is cămașă, which you can see by its ending "ă".