These experiments serve no useful purpose.

这些实验没有任何实际意义。

《牛津词典》

The true cost of these experiments to the environment will not be known for years to come.

这些实验对环境造成的确切代价在未来数年内是看不见的。

《牛津词典》

For the most part, these experiments rely on incentive payments to get doctors to try them.

在很大程度上，这些实验依赖激励性的报酬来促使医生进行尝试。

youdao

Giovanni realized that Rappaccini must have created these strange and terrible flowers through his experiments.

VOA: special.2009.05.30

So, I mentioned at the beginning, while he was working with this radium bromide that I was very relieved to see that it did not kill him to do these experiments.

我在最开始就说了，由于他工作时接触到了溴化镭,我非常欣慰的,看到它做这些实验。

麻省理工公开课 - 化学原理课程节选

And in these experiments we not only need to learn what has been learnt, but also have to learn what it is that we don't know.

在这些试验里我们不仅,要知道已知的知识，还要知道,我们不知道的内容。

麻省理工公开课 - 媒体、教育、市场课程节选

But each of these experiments costs you money (and team focus, which turns into money).

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While both of these experiments are exciting, there are some caveats to bear in mind.

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Pick any of these experiments and one's reaction on reading the subjects' instructions is usually confusion.

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