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
I take this threat very seriously.
我认为这种威胁非同小可。
Seldom seen, soon forgotten.
见得少，忘得快。
Four hundred! That's a lot of money. But, just this once. After all, this ball is very important.
400法郎！这倒是很大一笔钱。不过，就只这么一次。要知道，这次舞会很重要啊。