/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: ClauAcqua https://public.slidesharecdn.com/v2/images/profile-picture.png Per corrugare la fronte si mettono in movimento ben sessantacinque muscoli. Per sorridere solo diciannove. Allora, almeno per economia, sorridi!