Traditional Chinese-English dictionaries only aim to translate the Chinese headwords into one or more English equivalents and the distinctive semantic features of the English equivalents are not interpreted in the entry,which cannot meet the needs of the learners.

Based on examples and cases of interpreting and linguistics study,and analysis of the features of conference languages,the paper explores the importance of "equivalent words" in conference interpretation.

English words in pairs,as idiomatic expressions,are characterized by distinctive linguistic features in their pronunciation,structure,meaning,and style.

Generally speaking, English words in pairs have a fixed construction and they are used as a whole unit to express meanings.

With the characteristics of semantic unity and structural fixedness, English words in pairs are usually regarded as the result of conventions.

A discussion is being held in this paper on the similarities between English synonymy pairs and Chinese reduplication words by means of comparison, making a brief survey of contrastive linguistics and cross-cultural study.

This article illustrates the language internal restraint factors of the commendatory and derogatory meanings of English words and phrases with a lot of examples,for the purpose of providing English learners with pra.