The children wore special wrist-band devices for a week to track the amount they slept.

为了跟踪孩子们的睡眠时间，他们戴了一个星期的特殊的手链装置。

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In secondary school, McCray ran track, played rugby and was in the band and orchestra.

在中学时，麦克雷参加田径运动、打橄榄球，还参加了管弦乐队。

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In secondary school, McCray ran track, played rugby and was in the band and orchestra.

在中学时，麦克雷参加田径运动、打橄榄球，还参加了管弦乐队。

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