Hello!
Im not sure if there is any other context, but the sentence means
"She's been dancing for three years"
If you mean correct as far as being a sentence.. and having a meaning, then yes, it is correct.
Hope this helps!
Have a great day!
<u>Answer</u><u>:</u><u> </u><u>In Spanish What sign identifies the participants</u>
The decay that causes this change is called radioactive decay
Yo me levanto
Tú te afeitas
Nosotros nos vestimos
Ellas se secan