例句與造句

1. The backgrovind of this paper is text retrieval conference ( trec ) , high accuracy retrieval of document ( hard ) . in this paper , the characteristics of traditional vector model and probabilistic model are introduced
   本文的提出背景是第12屆國(guó)際文本檢索大會(huì)的子項(xiàng)目，高精度文本檢索( textretrievalconference12 ， highaccuracyretrievalofdocumenttrack ) 。
2. It's difficult to find text retrieval conference in a sentence. 用text retrieval conference造句挺難的