noun🔗Share系词，连系动词 (grammar) A word, usually a verb, used to link the subject of a sentence with a predicate (usually a subject complement or an adverbial), that unites or associates the subject with the predicate."In the sentence "The sky is blue," the word "is" functions as a copula, linking the subject "sky" to the predicate "blue." "在“天空是蓝色的”这句话中，“是”这个字充当系词的作用，连接主语“天空”和表语“蓝色的”。grammarlinguisticslanguagewordChat with AIVocabulary GamePractice Reading
noun🔗Share联结函数，关联函数 A function that represents the association between two or more variables, independent of the individual marginal distributions of the variables."The copula allowed researchers to model the relationship between students' test scores in math and science, even when the score distributions for each subject were different. "即使数学和科学的成绩分布各不相同，联结函数也让研究人员能够对学生在这两门科目中的考试成绩之间的关系进行建模。statisticsmathChat with AIVocabulary GamePractice Reading
noun🔗Share音栓耦合器, 键盘连接器 A device that connects two or more keyboards of an organ."The organist used the copula to play the melody on the higher keyboard while simultaneously providing a bass line on the lower one. "管风琴师使用了音栓耦合器/键盘连接器，在高音键盘上演奏旋律的同时，在低音键盘上提供低音线。organmusicdevicemachineChat with AIVocabulary GamePractice Reading
noun🔗Share性交，交配 The act of copulation; mating."The zookeepers carefully monitored the penguins' behavior, hoping to observe a successful copula that breeding season. "动物园管理员们仔细观察着企鹅们的行为，希望能在繁殖季节观察到成功的交配。biologysexanimalChat with AIVocabulary GamePractice Reading
