1.Scientists have cast new light on the effects our diet has on our mental health.
cast new light on 对…进行新的阐述
His words cast new light on the problem.
他的话对这个难题提供了新的线索 。
2.There is a paucity of research on the influence our dietary intake has on mental health.
a paucity of 缺乏
However, there is a paucity of research on the issue with Chinese subjects.
然而,鲜有研究使用中文的受试者来探讨这一问题 。