But it may also turn its attention outward, the researchers argue, and notice, say, a pattern in animal tracks that was previously hidden.

研究者认为，大脑也可能将注意力指向外部，比如说，大脑注意到此前隐蔽的属于动物王国的那种模式。

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With a hidden OLED display, the device tells time, counts your steps, computes the number of calories you've burned, and tracks your heart rate.

魅族手环使用隐藏的OLED显示屏，设备会显示时间，计算您的步数，计算您所燃烧的卡路里的数量，并跟踪您的心率。

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Winehouse was eligible as a result of the album Lioness: Hidden Treasures, which compiled rare material, unreleased tracks and alternative recordings after her death in 2011.

BBC: Brit Awards: Emeli Sande leads nominations

His Warrior was following 15 other vehicles in established tracks to reduce the risk of hitting a hidden bomb.

BBC: Pte Richard Hunt