That means they take a drop of blood and they look at it under a microscope, and they can confirm that this was an actual case of malaria.

VOA: standard.2010.06.17

.. What I'm going to do now-- let's start out with the case where-- now it's going to get a little bit more complicated if we drop the independence assumption.

我现在要做的是-,让我们从案例开始-,接下来的情况会比刚才的复杂一点,因为我们去掉了“相互独立“这一前提假设。

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