And they asked the subjects to guess, by pointing to the board with their other hand, where their hidden knuckles and fingertips lay.
然后让这个志愿者用另外一只手指着板，猜测被隐藏的手的指节和指尖的位置。
2
During the various' stimulations', the women either held their boyfriend's hand or the hand of a male stranger, both of whom were hidden behind a curtain.
在不同的疼痛刺激中，研究人员要求她们握着男友或是一位陌生男人的手，与此同时男人们都藏在帘子后面。
3
On the one hand new history being made, on the other a tragic chapter hidden away in the mysterious darkness of a human heart.