主讲嘉宾简介：
Sam Wolfefocuses on understanding the nature of grammatical variation, acquisition and change, principally in the Romance languages. Within Romance, he works on both standard and non-standard Romance varieties, with particular interests in French, Occitan, Spanish, and the languages of Italy. Much of his work to date has focused on the early history of the Romance languages, which constitutes a missing link in our understanding of how Latin changed into the Romance languages spoken today.