translation.en: And typically, there is a lot of variation, but if you have a dragonfly with, say, a one year life cycle, which is quite typical, the larva, living in the fresh water, lives for 10 or 11 months.
translation.zh: 当然，不同种类间的差异各种各样， 但是如果你有一种蜻蜓，生命周期为一年， 这样一个很典型的周期，它的幼虫，会在淡水中生活 10或11个月。