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1·There are a lot of unproven allegations flying around.

有很多未经证实的谣言在迅速传播开来。《柯林斯英汉双解大词典》

2·Even setting aside the unproven hints of ancient oceans, the extent of the outflow channels suggests that a huge total volume of water existed on Mars in the past.

即使不考虑未经证实的古代海洋迹象，流出渠道的范围表明，过去火星上存在着大量的水资源。

3·This is particularly true with unproven new products.

对于还没有经过市场证明的新产品更是如此。

4·But an unproven intervention can do considerable harm.

但是，未经证实的干预可能相当有害。

5·All other methods of staying awake and alert at the wheel are unproven.

另外一些在开车时保持清醒和警惕的方法都是未经证实的。

6·The technology is unproven at this scale and would be very expensive.

何况该技术还没有在如此规模下使用的先例，更不用说昂贵的开销了。

7·Moreover, his assertion that markets have become more fragile is unproven.

此外，他关于市场变的更加脆弱的断言是未被证明的。

8·As instructed, I cut my lifeline to the bank and leapt into unproven waters.

像指示的那样，我把我的生命线系到了银行上跳进了这未知的领域里。

9·He admits that this is still an unproven hypothesis, but it is one worth considering.

他承认，这仍是一个未被证实的假设，不过，这是一个值得考虑的假设。

10·The risks, he said, were rubbish, unproven by science, while the potential benefits were endless.

他说，未经科学证实的风险不过是垃圾，而潜在的优势则永无止境。

未经证明的

1·Avoid Overpriced, Unproven supplements - Most people assume that FDA approved nutritional supplements are proven products.

回避那些定价过高又未经证明的补品——多数人认为食品及药物管理局批准的营养补品就是经过验证的产品。

未经检验的

1·The longer that unproven therapies stay on the market, the greater is the risk that a history of use can be framed as evidence of safety and efficacy.

未经检验的干细胞疗法在市场上停留的时间越长，那些使用历史被做为其安全性和有效性的证明的风险就越大。