Bibo
有界输入有界输出（bounded-input bounded-output）
🗣️ 情景例句
You were four or five years old, I think.
当时你才四、五岁 我想。
Hello. Could I please speak to Miss Davis?
喂，麻烦你，请戴维斯小姐听电话。
What are your next plans?
下一步你计划干些什么呢？