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
It's a big decision for me, Bill.
对我来说这是个大决定， Bill。
Where did you visit?
你去参观了哪些地方？
I've looked round the whole school. I can't find it anywhere.
“我整个学校都找过了。我就是找不到它。”