这二位作者得出结论说，这些种内的差别能比喜钙植物和喜酸植物之间的差别大。

The two authors concluded that these intraspecific differences can be greater than those among the calciphytes and oxylophytes .

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最后他们决定用锂来做，所以我们就有了一种含有柠檬酸锂的汽水，你们中的有些人可能对它很熟悉，它就是七喜。

So, here we have this soda with lithium citrate, some of you might be familiar with this, soda is called 7-up.

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