So what we have to do, of course, is take it in to the lab and do this in a more systematic way with random assignment.

因此，我们必须做的是，把实验带回实验室,在随机安排下，更系统地做这个实验。

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Of course, they're all sorts of conditions under which a reaction could be wrong in the lab or outdoors or however, right. But this is the way we're going to define delta H of reaction.

当然，在实验室或室外,之类的环境中，在这些条件下,反应可能出错，但这是我们,要定义反应的△H的方法。

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