许多药物都是经过反复试验后才被发现的。

Many drugs were found by trial and error.

《柯林斯英汉双解大词典》

从某种意义上说，我们是通过反复试验、不断犯错来学习的。

We learn, in a sense, by trial and error.

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经过反复试验，我终于找到了正确的方法。

I finally found the right key after lots of trial and error.

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那是一个反复试验的过程。

It was a process of trial and error.

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经过反复试验，我终于找到了正确的方法。

Finally I found out the right way over repeated trials.

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复杂规则在投入生产之前可能需要反复试验。

Complex rules may require many iterations before the rule is ready for production.

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经过反复试验，我终于找到了正确的方法。

I find the right way after many trials.

youdao

你可以通过反复试验来学习如何正确使用它。

You can learn how to use it properly by trial and error.

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通过反复试验学习。

Learn by trial and error.

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选择哪一些是设计、反复试验和个人偏好的问题。

Choosing which to use is a matter of design, trial-and-error, and personal preference.

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(英译汉)他们经过反复试验才最终取得成功。

It was only after many tries that they finally succeeded.

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(英译汉)他们经过反复试验才最终取得成功。

It was only after many tries that they finally succeeded.

youdao