但甚至早在那之前，人们就已经在试验改良传统原声吉他的方法了。

But long before that even, people were experimenting with ways to modify traditional acoustic guitars.

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药物只有在试验证明它们是相对安全的情况，且其益处大于风险时，才会被批准使用。

Drugs are only approved after tests have demonstrated that they are relatively safe when used as directed and when their benefits outweigh their risks.

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在试验中，蜜蜂们被放到一英里之外的田地中后，寻找到回家的路。

In tests, the bees navigate back home after being placed in a field a mile away.

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Well, here I'm a little bit below 100 and in two, and test one a little bit below 100 as well.

好了我现在在试验2中有一个小于100的数，而实验1也得到了一个小于100的数。

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And again in one of the functional magnetic insonance image experiments, we could ask Mike to examine faces verse other things.

与在一个功能性核磁共振成像试验中一样，我们告诉迈克去仔细看人脸和其他东西。

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She was part of the clinical trial that did this, and they gave everybody certificates after it was done.

她当时就在参与疫苗的临床试验,试验后他们会给每个参与者颁发一个证明

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