Morphology: The study of the structure and form of words in language or a language, including inflection, derivation, and the formation of compounds.
词法，词态学，形态音位学，语言或某一语言中对于单词的结构和形式的研究，包括词尾变化、派生和合成词的构成。
By comparison with the derivation in Chinese, Dong language and English, the authors hope to help people study these languages better and make a better cultural exchange.
本文通过对汉语、侗语和英语词的构成进行比较，帮助人们更好地学习汉语、侗语和英语，从而更好地进行文化交流。
It is held that "coherence" is the reflection of objective things in people's minds and the result of derivation between the language producer and the receiver on the basis of world knowledge.
“连贯”是客观事物在人们大脑中的反映，是在交际双方在世界知识基础上进行推导的结果。
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