Closed interval
[计] 闭区间
🧩 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
Really. I didn't like math.
真的。我不喜欢数学。
I doubt that I'll do anything tomorrow.
我不确定我明天将做什么事。
That's the end of the tour.
参观就此结束了。