Following Culicover andRochemont (1983, 1990) and Horvath (1986), we in this paper assume that this essentially semantic conception of 'Focus' can be characterized as a purely formal syntactic feature [+Focus] or [+F], which gets assigned to constituents at a certain appropriate level of syntactic representation, triggering such syntactic operations such as 'Movement' and 'Adjoining' under the general syntactic principles and constraints.
this generalization holds true only in Mandarin and perhaps in some other varieties of the Chinese language but certainly not in all varieties of the language.