Bounded interval
有界区间
🧩 词语组成解析
a. 有界限的
🗣️ 情景例句
if it's all right with your dad.
假如你爸爸答应的话。
What? Already? Won't you have more coffee?
怎么，已经要走了？要不要再喝点咖啡？
She works very hard and is very helpful.
她工作非常努力，对同学们帮助很大。