Bibo
有界输入有界输出（bounded-input bounded-output）
🗣️ 情景例句
Chileren should learn about the great accomplishments of their nation.
孩子们应该了解自己国家的伟大成就。
That's monkey business!
胡闹！
On the first lap, Class 3 were in front.
在跑第一圈时，3班在前边。