That's very nice. So basically, you get a lot of benefit supposedly from this 7-Up soda from the 1920's or so.

这非常好，因此基本上，在二十世纪二十年代,喝到这样的七喜恐怕对你大有好处。

麻省理工公开课 - 化学原理课程节选

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

Here's a, actually here it did take 25 years, but they did, they did eventually step on before we started drinking 7-Up.

这个过程，这个过程真的花了二十五年的时间，但是他们做到了，他们在我们喝七喜之前制止了加锂的行为。

麻省理工公开课 - 化学原理课程节选

Yes, it's 7. So, I don't know if this is true or not, but I wonder if that's where the actual name 7-Up came from.

对，是七，我不知道这是不是真的，但是我怀疑这才是,七喜名字的真正来源。

麻省理工公开课 - 化学原理课程节选

This was eventually taken out, and actually just for your interest, there was no overlap between the time when cocaine was in Coca Cola and lithium was in 7-Up, so there was a few years difference between those two times, but it's amazing to think about what does go into processed foods.

锂最终被去掉了，如果你感兴趣的话，可口可乐中含有可卡因,与七喜中含锂的时代,并没有交集，它们之间还差了几年，但是想一想加工食品里,会加入什么东西还是很令人吃惊的。

麻省理工公开课 - 化学原理课程节选