The subjects were asked to use their free right hand point with a baton to the location of each knuckle and fingertip of their left hand.
实验对象被要求用他们空出来的右手拿着一根指挥棒，指出他们左手每个指关节和指尖的位置。
He dislocated his left thumb's knuckle in a basketball game.
他在篮球比赛中让左手关节脱臼了。
He dislocated his left thumb's knuckle in a basketball game.
他在篮球比赛中让左手关节脱臼了。
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