Thus, Papa insisted that we learn at least one new thing each day. Though, as children, we thought this was crazy, it would never have occurred to us to deny Papa a request.
求教:would have done常见的用法有(对过去)推测用法,还有虚拟用法等;请问,对于此句来说,would have done是哪种用法或如何从用法上去理解这里的would have done?谢谢。