研究生科技英语阅读课文翻译对照(32)

一些研究显示，经常使用手机会增加得脑部和口腔癌症的几率。有的研究却没发现两者之间有什么联系。但是，手机算是个新兴事物，而脑癌发展也缓慢，许多专家还是建议减少使用手机。
Does your cell phone increase your risk of brain cancer? Does it affect your skin or your sperm viability? Is it safe for pregnant women or children? Should you keep it in your bag, on your belt, in your pants or shirt pocket? Should you use a hands-free headset? Are present cell phone safety standards strict enough?
手机会增加得脑癌的几率吗？会不会影响皮肤或者精子活性？使用手机对孕妇或孩子安全吗？应该把手机放在哪，包里、衣服口袋，还是挂在腰带上？打电话的时候要用耳机吗？现在的手机安全标准够不够严？
You don’t know? You’re not alone.
你不知道？这很正常。
With some 4 to 5 billion cell phones now in use worldwide and hundreds of studies seeking evidence of their health effects published in peer-reviewed journals over the last 10 years, there’s precious little scientific certainty over whether cell phones pose any danger to those using them. For nearly every study that reports an effect, another, just as carefully conducted, finds none. All of which leaves journalists, consumer advocates, regulatory agencies, politicians, industry spokespersons, and cell phone users able to choose and interpret the results they prefer, or ignore the ones they don’t.