Bibo
有界输入有界输出（bounded-input bounded-output）
🗣️ 情景例句
Let me show you some pictures of houses.
我来给你们看看一些房子的照片。
Thank you very much. We really had a good time.
非常感谢你。我确实玩得很痛快。
Though they extol the virtues of the peaceful life, only one of hem has ever gone to live in the country and he was back in town within six months.
尽管他们都交口称赞宁静的乡村生活的种种优点，但其中只有一个人真去农村住过，而且不足6个月就回来了。