etcoffCOCA²¹⁴¹⁰⁹ 例句 Harvard psychologist Nancy Etcoff observes that, with this vital equation very much in mind, our brains behave like a highly sensitive radar constantly hunting a signal. 哈佛大学心理学家南希。艾特考夫指出，因为我们非常清楚以上这点的重要性，我们的大脑就像一个高灵敏度的雷达在不断地搜索着信号。59edu