他们还扩大了试验范围。

They are also expanding the scope of their trials.

youdao

然而需求旺盛，销售持续增长，麦当劳也在考虑扩大试验范围。

Yet demand is strong, sales are increasing, and McDonald's is thinking about extending the experiment.

youdao

尤其缺乏有关婴儿和孕妇的安全性数据，这两类人群往往不在预先登记的临床试验范围内。

Safety data is particularly lacking for infants and pregnant women, as these populations are frequently not included in pre-registration clinical trials.

youdao

You could do that with a relatively small number.

这个试验可在一个相对较小的范围内开展

耶鲁公开课 - 生物医学工程探索课程节选