1. Kids, on my first day as a college professor,there re two things I didn't know that I wish did.
孩子们 我当大学教授的第一天，我真希望自己当时知道两件事。
2. The first thing was that your mother was in that classroom.
第一件是 你们的妈妈就在那间教室里。
3. The second thing?
第二件?。
4. Well, to explain tt, we have to go back to the beginning of the summer,when, after a ye of wrestling with their feelings for each other,Barney and Robin finally, well...