Critics say the policy contradicts recommendations by many health experts, who warn that a person's weight is influenced by genetic and environmental factors.

批评者说这项政策与许多健康专家的建议相矛盾，专家们警告说一个人的体重受基因和环境因素的影响。

youdao

He said the risk of premature birth was likely to be a mix of genetic and environmental factors.

他说早产的风险可能是基因和环境因素的综合。

youdao

The replicative lifespan of Saccharomyces cerevisiae is determined by both genetic and environmental factors.

在复制的酿酒酵母的寿命是由遗传和环境因素。

youdao

Researchers believe a combination of environmental and genetic factors may be responsible.

VOA: special.2009.07.28

Most cases of autism probably involve some combination of genetic and environmental factors, experts say, and research is burgeoning.

WSJ: Why Kids Get Autism: New Genetic Clues

But, the researchers add that these findings will now assist further studies in revealing genetic and environmental factors that affect sperm length.

FORBES: News for Men: Size Matters When it Comes to Your Swimmers

Many Americans suffer from it, and it is most likely caused by a complex set of genetic and environmental factors, it says.

CNN: STORY HIGHLIGHTS