Copula,used with an adjective or a predicate noun. 系动词，与形容词活着谓语性名词连用。
Negative copula sentence manily use adverb "fei". 否定判断句主要通过副词“非”来表达。
Copula net diagram is an important tool for guiding the cupola operation. 网形图是指导冲天炉熔炼操作的重要工具。
The subject and predicate nominal must be connected by a linking verb, also called a copula. 主语和名词性述语之间必须用连系动词连接，连系动词也称为系动词。
The large quantity of nodular iron castings had back bridge housing are produced by using copula and handcraft molding. 通过合理熔炼、造型、制芯及铸造工艺参数,采用冲天炉熔炼,手工造型制芯,实现批量生产优质带包类桥壳球铁件。
Among them, the black Internet bar of periphery of urban and rural copula, country, school will be blow focal point. 其中，城乡接合部、农村、学校周边的黑网吧将是打击重点。
