If the question of time is not explicitly brought up, then you should know that you have to use this formula.

如果时间的问题并没有明确提出,那你应该知道,必须要用这个式子

耶鲁公开课 - 基础物理课程节选

So the problem of infectious disease prevention and treatment isn't solved yet, you know this, right?

传染病预防和治疗的问题,现在仍然没有解决,你们应该了解,对吧

耶鲁公开课 - 生物医学工程探索课程节选

Why? Because they didn't ask the question that they needed to ask,which was,in that particular case, the salutogenic question: why do some individuals succeed ? despite unfavorable circumstances?

为什么呢？因为他们没有提出这样的问题,这特定情况下，他们应该问这个问题，这个健康本源的问题，为什么有些人,成长环境恶劣，依然能成功？

哈佛公开课 - 幸福课课程节选