The writer suggests taking translation unit as the starting point, and after it s been carefully specified by its linguistic and cultural features, the translator can find its equivalent in the target language and finally add the semantic dynamic bearings and thus to help the equivalent theory out of the previous mechanical dilemma and cater to the increasing needs of the machine translatio.

According to the characteristics of workflow process execution,a kind of reactive activity-centered process meta-model is defined and a kind of graphical notation is provided for it,at the same time,for this meta-model,a kind of dynamic semantics is specified,which represents the runtime behavior of the process and can be expressed as a finite state automata.

In order to deal with the problem that current digital rights expression models have less ability to describe dynamic semantics, a new model, DDRM(Dynamic Digical Rights Model), which can describe action state was presented.

In this thesis,we mainly try to describe and analyse the semantic development of "hao (好) ", the static and dynamic semantics of "hao" deliberately.