copular
美 ['kɒpjʊləə]
英 ['kɒpjʊləə] 
英汉解释
例句
be [as copular verb]having the state, quality, identity, nature, role, etc. , specified
[表特定状态、质量、身份、本质或角色等]是;就是
Quantitative Analysis of Copular Verbs in Technical English
系动词在科技英语中的量化分析
Copular Verb Based on Prototype Theory and Family Resemblance
基于典型范畴理论的连系动词家族相似性研究