Milton began writing his epic poem too late to celebrate a virtuous political realm.

弥尔顿写他的史诗的时候,要歌颂清明的政局已经为时过晚。

耶鲁公开课 - 弥尔顿课程节选

The other is that some places where the disease occurs the governments are not stable, or there might be civil unrest or civil wars and that makes it very difficult to orchestrate giving vaccines when there's other things happening in the country that are of more immediate concern.

另一个原因是,一些疾病发生地区,当地的政局不那么稳定,或者有动乱和内战,当在一个国家内发生许多,突发应急事件的时候,疫苗的分派发放会变得非常困难

耶鲁公开课 - 生物医学工程探索课程节选