拉德斯基引用了发展心理学家埃德·特罗尼克在20世纪70年代设计的“面无表情实验”。
Radesky cites the "still face experiment" devised by developmental psychologist Ed Tronick in the 1970s.
美食联播网的总经理尼克·曹罗古德说：“这突出表明了对我们来说花费时间和精力去致谢仍然是非常重要的。”
Nick Thorogood, the managing director of Food Network, said: "This highlights that taking the time and effort to say thanks is still very important to us."
希腊人仍在使用一些古代的场所，如普尼克斯和希罗德·阿提库剧场。
Greeks still use some ancient sites, such as the Pnyx and the Theater of Herodes Atticus.
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