a word that is written with three letters in an alphabetic writing system
例句
用作名词 (n.)
A trigram is a group of three consecutive characters taken from a string. 三字铭是从一个字串里取出来的一组三个连续的字符。
In Mandarin speech recognition, this model shows a better performance and requires less memory space than the word based trigram model. 在汉语普通话连续音识别中,这个词义模型的性能优于基于词的三元文法模型,并且需要较小的存储空间。