系词，中文词汇之一，意思是逻辑上指一个命题的三部分之一，连系主词和宾词来表示肯定或否定。
冠词和介系词对英文初学者来说是个绊脚石。
Articles and prepositions are stumbling blocks to the beginners of English.
那些书通常是战胜介系词或战胜片语之类的书名。
They are usually called Conquering Prepositions or Conquering Phrases and the like.
O'Reilly已经开始用RDFa 标注其所有的目录以及 良好关系词汇。
O'Reilly has started marking up all of their catalog with RDFa and the Good Relations vocabulary.
应用推荐