Definition of the long sentences of different scholars on the definitions differ,but generally is:mainly refers to the syntax of English long sentences,structure complex,modifiers,and content level in two or more complex,simple sentences can also mean more [4].English long sentences had been adopted on the basis of simple sentences got longer and longer modifier,use clauses make sentences complex.These clauses are often connected by the amount of energy or other components,makes the whole complex of the sentence as if it were a luxuriant tree grows as tall as trees,seamless [5].So I think English long sentence General is means 20 a word around of sentences,its sentences apart from main that guest,main of table and "there be" of structure trunk outside,also carry has various modified components (as clauses,and phrase or independent main grid),its attribute or adverbial can a ring sets a ring,modified in the another has modified or qualified,formed twists,and complex of long sentence structure,most long of sentences something can up Shang hundreds of Word.So when translating long sentences to first figure out the syntax trunk and clear logical relationships between the various modifiers,understand long sentences information structure and expression.