In order to describe as well as explain the difference in uses between Beijing Mandarin and Taiwan Mandarin, we adopt the Theta System Theory (Reinhart 2002; Marelj 2004) to probe into the argument structures of the transitive verb fan and further pinpoint the fundamental syntactic difference between Beijing Mandarin and Taiwan Mandarin, that is, the absence or presence of the /+c feature in the argument structure.
taiwan Mandarin requires the obligatory presence of the /+c feature in the argument structure of fan, while Beijing Mandarin does not.