Closed operator
[计] 闭算子
🧩 词语组成解析
closed
[klozd]
adj. 关闭着的，封闭着的;密闭着的，保密的;<美>准备好了的，定了契约的;
v. “close”的过去式和过去分词;
clos=close关闭+ed已...的→关闭了的
🗣️ 情景例句
What events are happening on campus?
校园里有什么事件发生？
Jeff will lose face if his friend fails to work hard.
杰夫因他的朋友不肯勤奋工作而丢了面子。
It is one of the world's most important languages because it is so widely used.
英语使用得如此广泛，它已成为全球最重要的语言之一。