linking verb
noun [ C ] language specialized uk/ˈlɪŋ.kɪŋ ˌvɜːb/ us/ˈlɪŋ.kɪŋ ˌvɝːb/
系动词，连系动词
a verb that connects the qualities of an object or person to that object or person
In the sentence "My bags weigh 45 kg", "weigh" is a linking verb. 在句子 My bags weigh 45kg 中，weigh 是系动词。
Synonym: copula