And somehow, this is transformed -- the yeast burps and sweats are later transformed -- and this is really getting to the heart of what makes bread so special is that it is a transformational food, and we're going to explore that in a minute.
然后就发生了某种转型： 我们差不多到最关键的部分了， 这个转型是面包如此特别的关键， 面包是一种转型食品。 我们一会儿再来研究这个过程。