Sometimes it takes a little trial and error to see what works best.

有时候需要反试验才能知道什么效果最好。

Usually a new drug requires repeated testing before it is approved for treatment.

常，一种新药物获准用于治疗前需要进行反试验。

And there's been a fair amount of trial and error, says communication officer Sarah Preston.

讯官员莎拉·普雷斯顿说，已做相当多的反试验。

Can I discover new actions through trial and error?

我能反试验试错发现新的行动？

It will be trial and error for a while.

一段时期内会反试验 可能会有差错。

Sometimes the learning process is by trial and error.

有时，这样的学习要反试验的。

Another scientific term that we use in any part of our lives is trial and error.

我们生活中用到的另一个科学术语就" 反试验（trial and error）" 。

So, kind of go with that, it's all about trial and error, don't give up, keep working on it.

所以，差不多这样，一切都关乎反试验，不要放弃，继续努力。

In reality, we still live in an age of empiric, trial-and-error imprecision medicine.

事实上，我们仍然生活在一个经验主义、反试验的不精确医学时代。

The current state of mental health treatment is essentially a strategy of trial and error.

心理健康治疗的现状本质上一种反试验的策略。

They are all products of long hours of trial and errors.

它们都长时间反试验的产物。

To top it off, you need a lot of trial and error.

您需要大量的反试验。

Where trial-and-error was used, the cockatoos did better than monkeys in similar tests.

在使用反试验的情况下，凤头鹦鹉在类似测试中的表现优于猴子。

There’s no getting around it— this will take some trial and error.

没有回避的余地——这需要反试验。

There are several ways to solve this equation, including trial and error.

有几种方法可以解决这个方，包括反试验。

I mean, I think we’ve really learned by trial and error to an experience.

我的意思， 我认为我们真的反试验学到了经验。

Historically, these are questions that have been addressed through years of rigorous trial and error.

从历史上看，这些问题多年严格的反试验得到解决的。

Repeated testing also illustrates the determination to succeed.

反试验也说明了成功的决心。

It's taken them some time and trial and error.

他们花了一些时间和反试验。

But individual learning, by trial and error, it does have its limitations.

然而，反试验进行的个体学习确实有其局限性。