Bibo
有界输入有界输出（bounded-input bounded-output）
🗣️ 情景例句
I thought so, too.
我也这样想。
More of our worries come from within than from without.
烦恼发乎内者多于发乎外。
It was spring,but the weather was awful.It rained all the time.
是春天，但天气太糟了。一直在下雨。