"My!" she said, "That was a good morning.By the time you wash,we'll be ready to eat!"

VOA: special.2009.02.14

The first thing they are supposed to say is good morning or good afternoon, and then they say, what are your questions?

他们应该说的第一件事就是,早上好或下午好，然后会问，你的问题是什么呢？

麻省理工公开课 - 固态化学导论课程节选

The first thing they are supposed to say is good morning or good afternoon, and then they say, what are your questions?

他们应该说的第一件事就是,早上好或下午好，然后会问，你的问题是什么呢？

麻省理工公开课 - 固态化学导论课程节选