例句與造句

1. In english - chinese translation , the placement of topic should be given much attention , for topic is a discourse unit and it could have semantic ties with more than one sentence
   英譯漢要重視話題的選擇，因為話題是一個語篇概念，它可以而且經常將其語義管轄范圍擴展到多個子句。
2. It's difficult to find discourse units in a sentence. 用discourse units造句挺難的