It is a proven fact that fluoride strengthens growing teeth.
氟化物可以强化生长中的牙齿，这是已证明的事实。
In the past this process of transition has often proven difficult.
在过去，这种转变过程常证明是艰难的。
This philosophy has proven its worth.
这个哲理已经证明了它的价值。
Their efforts have been proven fruitful.
事实证明他们的努力是有成效的。
Seven years later, they were proven wrong.
7年后，事实证明他们错了。
There are nonetheless several empirically proven benefits.
尽管如此，还是有一些被经验证明的益处。
The technology has proven to help the most demanding customers.
事实证明，这项技术可以帮助那些最苛刻的客户。
He has a proven track record in marketing.
他有可靠的销售业绩记录。
Efficient technology is here now, proven and cheap.
现在已经有了高效的技术，经过验证且价格低廉。
But it has proven to be wrong.
但是，事实证明这是错的。
The system is not fully proven.
这些系统还没有被完全证明有效。
Ksplice is a proven technology.
Ksplice是一项已经验证的技术。
The model has been proven to work.
这个模式已经证明是可行的。
He's proven he can execute already.
他已经证明了自己的执行力。
New theories are proven every year.
每年都有新理论被证明。
Reducing demand has proven difficult.
事实证明，降低需求非常困难。
It's a proven programming language.
它是一种经过验证的编程语言。
But it has proven a smart move so far.
但迄今为止，事实证明这是明智之举。
He has proven what kind of a man he is.
他证明了他是一个什么样的人。
She has proven to be a popular senator.
希拉里已向世人证明自己是位颇得人心的参议员。
None of the accusations has been proven.
但是这些指控都没有被证实。
It's been proven that companies do that.
现在已经证明了有公司就是这么做的。
使用经过证实的模式。
But the fear has simply been proven wrong.
但是那种担忧已经被证明是错的。
Now that belief cannot be proven up front.
目前这个信念还不能被证明。
The SIAs have proven especially effective.
补充免疫活动被证实为特别有效。
A proven service solution design method.
一种可靠的服务解决方案设计方法。
Since then, science has proven him correct.
从那以后，科学研究证明他是正确的。
But in one area they are being proven right.
但是在某个领域他们正逐渐被证明是正确的。
But in one area they are being proven right.
但是在某个领域他们正逐渐被证明是正确的。
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