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。

麻省理工公开课 - 化学原理课程节选

But anyway, this isn't really something you want to have in your soda, so they did take it out eventually.

但不管怎样，它不是你会想在汽水中喝到的东西，因此最终它被去掉了。

麻省理工公开课 - 化学原理课程节选

Lithium, slenderizing, that's great to see in a soda.

锂能让人变苗条，汽水就能做到这点是很棒的。

麻省理工公开课 - 化学原理课程节选

Another side effect if you take too much lithium is death, so that's no good to have in sodas either, and it might not have been as big a deal back in the 1920's, but you can imagine with supersizing today, this might be a bigger problem.

另一个副作用是因为摄入锂过量而死，这更说明在汽水里放这种东西是不好的，这在二十世纪二十年代可能没什么大问题，但你可以想象在如今这个什么都超标的时代，这也许会出更大的问题。

麻省理工公开课 - 化学原理课程节选