Active constraint
[计] 有效约束
🧩 词语组成解析
active
['æktiv]
adj. 积极的，活跃的，有生气的;迅速的，敏捷的;有效的，起作用的;
n. [语法]主动语态;积极分子，活跃的人;
🗣️ 情景例句
It will take less than 5 minutes to check out.
退房最多只需5分钟。
Yesterday was such a beautiful day we decided to go for a drive.
昨天是如此美好的一天，我们决定开车出去。
There's a zoo in the park. We can go and have a look at the animals.
公园里有个动物园哩。我们可以去看看动物。