vouloir: want it is the conjugated form for "vous" together they mean "Would You Like to...?" je veux tu veux il/elle/on veut nous voulons vous voulez ils veulent voulez-vous dancer avec moi? = would you like to dance with me?

Voulez vous is the conjugation of Vouloir.it means: Do you want to or you would like...?in french,conjugated form of the verb is a little difficult in grammar.But I think it's nothing for you,you are so clever my dear mimi.加油！我支持你:)

OMG,you are learning french too ?