The drug is to be reclassified after trials showed it to be more harmful than previously thought.

试验显示这种药比先前想象的危害更大，要重新归类。

《牛津词典》

Whether or not there are defects in the particular products will ultimately be decided by juries after trials before those juries.

特定的产品是否有缺陷最终要在审理开始后由陪审团裁定。

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Its use has been established since 1976 after trials showed that the standard three-drug chemotherapy cocktail improved survival rates.

在试验表明含三种药物的标准鸡尾酒化疗能够提高存活率后，其应用也自1976年开始确定。

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The lever gets them out of the box, but after more and more trials they stopped scratching at the bars, pushing at the ceiling and so on.

杠杆让它们逃出迷笼，但在经历多次尝试之后,它们不再抓栏杆，不再推顶棚。

耶鲁公开课 - 心理学导论课程节选

Novartis hopes to apply for approval in March, barely two and a half years after trials began.

FORBES: Reviving Novartis

Human trials in treating epilepsy took longer than expected, but the gadget won U.S. approval in 1997, after trials on 310 patients found that it reduced the frequency of seizures 23% after three months.

FORBES: Rewiring the brain

It will take five years to carry out and assess the results of the trials after which large phase three trials may be required.

BBC: Doctors begin major stem cell trial for MS patients