So,composition alone can't give you the answer to the question why is the plywood superior to the solid pine board?

只用组成成分无法解答,这个问题,为什么胶合板要优于松木板呢？

麻省理工公开课 - 固态化学导论课程节选

So, he writes: To the psychologist alone can such questions occur as: Why do we smile when pleased and not scowl?

他这样写到：,对哲学家本身说,会出现这些问题：,为什么开心时我们微笑而非皱眉？

耶鲁公开课 - 心理学导论课程节选