C90 Transposition thinking

Faced with my question, I didn't hesitate to tell him, "It's simple, but it's simple in terms of age. In school, you can be simple. But once you leave school, enter the workplace, enter society, and if you're still in school, you're wrong. "

"Eh, this is different from what my father told me." Xu Bingbing said in a low voice.

Yan Xi asked Xu Bingbing curiously. "Then tell me