The leaves are about to fall but they haven't yet fallen.

这些叶子似坠非坠。

耶鲁公开课 - 弥尔顿课程节选

Six-month-olds don't, and even 12-month-olds don't find anything weird about this, while adults are sophisticated enough to understand that that's an unstable configuration and should fall over.

六个月大的婴儿则不会这么想,即使是十二个月大的婴儿,也没有发现这个木块存在的异常,只有经历世事的成年人才会理解,这不是个稳定的结构,而这个结构是会倒塌的

耶鲁公开课 - 心理学导论课程节选

The story of Adam and Eve and of the fall of Satan may strike us - having read or about to read Paradise Lost -- may strike us as a natural subject for Milton to have chosen for his epic poem.

弥尔顿选择了亚当夏娃以及撒旦的溃败的故事,作为他史诗的主题在我们看来--不管我们读过,还是将要读《失乐园》--都是很自然的。

耶鲁公开课 - 弥尔顿课程节选