Learning Factors is a blend of essential fatty acid rich oils, shown to optimize brain and eye function thereby contributing to normal learning, attention and concentration.
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Attention and concentration are important principles in guitar making.
注意力和集中力是吉他制作上最重要的原则。
The more you exercise, the more you increase your attention and concentration.
你越锻炼,你的注意力和专注力就会越强。
The coach said: 'Attention and concentration must always be at the highest levels.
教练说:“我们必须时刻保持高度的注意力,精神要高度集中。
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