Simons and Chabris asked the participants to count how many times the white team passed the ball.

西蒙斯和查布里斯让参与者计算穿白色上衣的队伍传球的次数。

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Viewers are asked to count how many times members of, say, the white team, manage to complete a pass, keeping the ball from the opposition.

观看者要说出比如白队成员传球成功的次数，以及护球成功的次数。

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All you have to do is watch a video of people passing a basketball and count how many times the players wearing white pass the ball.

你所要做的就是就是观看一个传球的视频，然后数出穿白色球衣的人传了多少次球。

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They count down the final seconds to midnight as they watch a brightly lit ball slide down a pole on top of a tall building.

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Vickers's advice is that when you've adopted your stance and are ready to putt, gaze calmly and steadily at the hole (or target spot) for about three counts, bring your eyes back to the ball in one count and fix your eyes on the back (or top) of the ball for two counts.

WSJ: Why Scientists Love to Study Golf

Andrew Flintoff accounted for Ricardo Powell and two balls later won an lbw decision against Sarwan, who could count himself unlucky as the ball struck his pad via the inside edge.

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Then make the stroke and continue to gaze at the ground, where the ball was, for at least one more count.

WSJ: Why Scientists Love to Study Golf