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
Thanks for your help! Keep the change.
多谢你帮忙， 不用找了。
Do not give a dog bread every time he wags his tail.
不要有求必应。
To be careful!
一定要小心！