translation.en: We're going to show babies a box of blue and yellow balls, and my then-graduate student, now colleague at Stanford, Hyowon Gweon, is going to pull three blue balls in a row out of this box, and when she pulls those balls out, she's going to squeeze them, and the balls are going to squeak.
translation.zh: 我们会给婴儿看一个盒子， 里面装满了蓝色和黄色的球， 我当时的研究生学生， 现在是斯坦福大学的同事，权孝媛。 会从盒子里连续拿出三个蓝色的球， 当她把球拿出来的时候，她会捏它们， 球会发出声音。