Bad track of hard disk is the most troublesome in all hard disk fault, especially physical bad track.

硬盘坏道(特别是物理坏道)是硬盘的所有故障中最让人头痛的。

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Slipping into bad eating habits may affect people's physical and mental health.

养成不良饮食习惯会对人们的身心造成不良影响。

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Lack of physical activity may increase LDL, or bad cholesterol, and decrease HDL, or good cholesterol.

缺乏体育锻炼会增加低密度脂蛋白(不好的蛋白)，降低高密度脂蛋白。

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There's never been study that showed exercise and physical activity is bad for you.

NPR: Confronting Misconceptions About Cancer Prevention

In so doing, he neatly but unconvincingly removes the physical basis for good or bad behaviour.

ECONOMIST: Where there��s a will there��s a way

Many of the most desolate parts of America have terrible physical infrastructure: housing is bad, transport links are inadequate.

ECONOMIST: America��s emerging markets