translation.en: They learned how to distinguish different species of mosses, which, to tell you the truth, is a lot more than my undergraduate students at the Evergreen College can do.
translation.zh: 他们学着去分辨不同种类的苔藓 老实告诉你们吧 这比我在Evergreen College（一所学校）的本科生可分辨的要多得多