莫納漢（Monaghan）解釋，這類實驗性研究的目的，是了解人們如何在一門語言中逐漸站穩腳步。
Detect unclear structure.
。关于这个话题，safew官方版本下载提供了深入分析
The upshot: I struggle to imagine a process whereby an obscure English children’s game somehow inspired gestural customs in Georgia, Egypt, Russia, and Iran within less than a century. It seems more reasonable to me that these customs might instead originate in an ancient Mediterranean tradition of apotropaic magic, or charms intended to combat bad luck.
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