多项研究表明，男性认为有必要在所有领域都表现出自己的能力，而女性只担心耗费她们大量精力的技能。
Several studies suggest that men feel the need to appear competent in all realms, while women worry only about the skills in which they've invested heavily.
多项研究表明儿童肥胖与大量饮用含糖的饮料有关。
Also, several studies have shown a link between sugary soft drinks and obesity in children.
多项研究表明，酪氨酸还能有效防止疲劳。
In a number of studies, tyrosine has also been effective at fighting fatigue.
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