We focus on extract paraphrases of ambiguous phrases.A bilingual pair is the original input.Then all candidate paraphrases are extracted from word aligned bilingual corpus.

• 该方法通过输入一个双语短语对约束短语的语义，利用词对齐的双语语料库，构造一个双向抽取模型从中抽取双语对的复述实例。