Bounded interval
有界区间
🧩 词语组成解析
a. 有界限的
🗣️ 情景例句
It was very thoughtful of you to send flowers.
你送花来，想得真周到。
In vain.
白忙一场。
If we spend all the money we'll try and win the football pools again.
如果我们花光了所有钱，我们设法在足球赛赌注上再赢一次。