Currently, there have been several classifications in SMT research community. Generally, the rules can be classified into two main groups according to whether syntax information is involved: bilingual phrases (Phrase) and syntax rules (Syntax). Further, the syntax rules can be divided into three categories according to the lexicalization levels<cite> (Liu et al., 2007</cite>; Zhang et al., 2008a source and target sides are non-lexicons (nonterminals)