科学家以前的研究已经发现看的人往往在眼睛和嘴之间游移，形成一个重要特征的反转三角形。
Previous studies have found that viewers tend to flick their gaze between the eyes and the mouth - an inverted triangle of important features.
这个尴尬的小插曲也许能够帮助我们解释为什么NASA的科学们对上周类似的发现迅速闭上了嘴。
That embarrassing episode might help explain why NASA scientists were so quick to muzzle talk of another such "discovery" last week.
也正如美国儿科学会的一位医生所说：“如果你把全世界的最好的工程师都聚集起来，让他们设计一种可以完美地堵住孩子们的嘴的东西，你找不出任何一种东西可以比热狗做的更棒。”
To wit: "If you were to take the best engineers in the world and asked them to design a perfect plug for a child's airway, you couldn't do better than a hot dog, " one AAP doctor said.
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