Copula
n. 系词, 介体, 接合部\\n[医] 介体; (舌)联桁; 交配
✅ 同义词
📖 牛津释义
copula
n
(grammar) type of verb that connects a subject with its complement 系词（即连系动词, 用以连结主语及其补语）
In `George became ill', the verb `became' is a copula. 在Georgebecameill一句中, became是系词.
🗣️ 情景例句
What do you think of this weather?
你觉得今天天气怎么样？
Did you hear that we would have a holiday next work?
你有没有听到下周可以休假的事？
For the same reason, writers talk interminably about their own books,
由于这个原因，作家喋喋不休地谈论自己的书，