So, here we have this soda with lithium citrate, some of you might be familiar with this, soda is called 7-Up.
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, even though we don't have the lithium anymore, we still keep that atomic number 7 around.
尽管现在它不含锂了,但是作为原子量的七,还是在一定程度上保留了下来。
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