过去20多年的研究已经指出微量营养素的重要性—食物中发现的极少量的物质起着很大的作用。

Research over the past 20 years have pointed to the importance of micronutrients - substances found in small amounts in foods that make a big difference.

youdao

过去20多年的研究已经指出微量营养素的重要性—食物中发现的极少量的物质起着很大的作用。

Research over the past 20 years have pointed to the importance of micronutrients - substances found in small amounts in foods that make a big difference.

youdao