首先，你要把大木块切断，制造钟的外壳。

First, you cut off the wood for a clock.

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It violates gravity, but six-month-olds aren't smart enough to know that a block just stuck over here is also surprising.

因为它违背了地心引力,但六个月大的婴儿还是不够聪明,他们没能发觉突出的木块也是令人惊奇的

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You show the baby, say a six-month-old, a stage with a block on it.

将一个木块放在平台上,然后让一个六个月大的婴儿来观看

耶鲁公开课 - 心理学导论课程节选

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