词干推导根据语法变化得出词汇表中已有单词的派生形式，包括动词的变化，比如write、wrote和written，或名词形式，比如mouse和mice。
Stem derivation finds derived forms of in-vocabulary words based on grammatical inflection, including verb conjugations such as write, wrote, and written, or noun forms such as mouse and mice.
派生词缀可以产生新单词，一些改变单词语法等级。
Derivational affixes can produce new words, some change grammatical classes of words.
在该领域具有代表性的学者从构词法、语法和翻译的角度对此类词缀及其派生词组的研究业已取得丰硕成果，但还存在研究的盲区。
Though some(representative) scholars have made great achievements in this research area from the perspectives of word formation, grammar and translation, there still remain some untouched areas.
本文运用功能语法理论，把派生、复合等构词法纳入认知研究。
This paper is attempted to apply the theory of Functional Grammar(FG) into cognitive study of English derivation , compounding and other word-formations.
形态学是语法学的一个分支，研究单词的内部结构和构词规则。形态学有两个分支：曲折形态学和词汇或派生形态学。
Morphology is the branch of grammar that studies the internal structure of words, and the rules by which words are formed.
形态学是语法学的一个分支，研究单词的内部结构和构词规则。形态学有两个分支：曲折形态学和词汇或派生形态学。
Morphology is the branch of grammar that studies the internal structure of words, and the rules by which words are formed.
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