(1) This paper discusses the constraints involved during the topicalization of NP/DP after "de" in Chinese, and accounts for the asymmetric phenomenon.

(2) This paper investigates the subject-object asymmetry exhibited in topicalization in Chinese.

(3) Topicalization, or fronted theme, refers to certain sentence constituent that moves to the initial position and leaves a trace in the original place.

(4) As a rule, Chinese topic structures formed by topicalization and left-dislocation are translated into one or more sentences with SVO word order.

(5) Topicalization is subject to the semantic constraint of operator-variable referential dependency in RT in light of the deficiencies of locality constraint in syntax.

(6) This paper presents a corpus study of two topic-comment constructions, namely topicalization(TOP) and left-dislocation(LD) in the Beijing dialect.

(7) This paper, within the framework of cognitive grammar, explores topic and its features, topicalization and its devices.