在词的构成成分中，实语素叫词根，虚语素叫词缀
An affixation compound is composed of a substantive morpheme and an empty morpheme .
们在组合关系和句法功能上有一些不同于其他构形虚语素的语法特征，文章对此进行了分析。
" Men " has special grammatical characteristics in constituted relations and syntax .
虚语素