Much more work will need to be done to untangle how other environmentalpollutants -- like the plastic additive bisphenol A -- may also contribute to America's ballooning diabetes problem.
The changes may seem small, but the study authors suspect they are one manifestation of the effects of environmentalpollutants on the male reproductive system.
可能这些变化看起来微不足道，但研究人员提出，这是环境污染对男性生殖系统所造成的危害的一种表现。
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We should thoroughly study the relationship between reduction of major pollutants and improvement of environmental quality.