Closed operation
[计] 闭运算
🧩 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
She's come up with a new idea for increasing sales.
她想出了增加销售量的主意。
I know the boy whose father is a professor.
我知道那个男孩的父亲是大学教授。
They've got a special exhibition on this month.
这个月他们举办特别的展览。