Or you want to randomize what you wear.

要么便穿。”

If a magnetic substance gets hot enough, for example, the magnetic orientations of the atoms get all randomized, and its overall magnetism is disrupted.

举个例子，如果一个具有磁性的物质变得足够热，原子的磁性定向会变得全然无序，其整体的磁性也就打乱了。

High school students will be subjected to the same safety measures as elementary and middle school students including randomized, weekly testing, masking and social distancing.

高中生将实施与中小生同等级的安全措施，包括检、每周新冠测试、戴口罩以及保持适当社交距离。

But again, this is from looking at populations, these aren't randomized controlled trials where we pick a set of people, we make them live in these places and we see how long they live.

但同样地，这来自于观察人群，这些不是对照试验，我们选择一组人，我们让他们住在这些地方，我们看看他们能活多久。

A handful of researchers did try to do randomized controlled trials—the gold standard for testing medical interventions—to see if low saturated fat or low cholesterol diets actually helped prevent heart attacks and deaths, as the hypothesis predicted.

少数的研究者设法控制测试——医疗干预测试的黄金法则——来看低饱和脂肪和低胆固醇饮食是否能帮助预防心因性猝死，如假设预测的一样。