Bounded interval
有界区间
🧩 词语组成解析
a. 有界限的
🗣️ 情景例句
Who wants to begin?
谁先开始？
Did you sell it to him yourself?
你自己亲自卖给他吗？
It's a very old castle. It is the oldest one in Britain.
这个城堡很古老，它是英国最老的了。