Some foods are particularly outstanding sources of a specific nutrient.
有些食物是某种营养素的良好来源。
The third study examined a specific nutrient, a sugar called fructose that is abundant in fruit.
第三个研究了一种具体营养物，一种在水果中富含的果糖。
BACKGROUND: There exists insufficient study with specific applicability regarding vascular distribution characteristics of sural nerve nutrient vessels of the distally based flap.
背景：有关腓肠神经营养血管远端蒂皮瓣的血管分布特点缺少具体可操作性的研究。
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