As background, remember that tokens are special dictionaries — in particular, ones that can contain a key TAG to indicate the grammatical role of a word.
不要忘记标志是特殊的字典这一背景——具体说是那些可以包含一个tag键以指明单词的语法角色的标志。
2
Advanced search has the added benefit of matching different word forms, such as plurals, alternate verb endings, and various grammatical tenses, in the search results.
高级搜索的另一个好处就是可以在搜索结果中匹配不同单词形式，比如复数、不同的动词结尾和各种语法时态。
3
In the grammatical sense, this word is the means or principal of predication whereby we say one thing is another thing: the mare is the female of the horse, for example.