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
I've never been to the aquarium
我从来没有去过水族馆
How much is the telephone bill a month?
每个月电话费要多少钱？
What about you?
你呢？