The cost of not having organic and not having fair trade and not having all the things

没有通过有机培养的食物加上不平等交易等等，

吃有机食品 - SpeakingMax英语口语达人

But yeah we're all excited to have you here and we have all sorts of things planned outside of problem sets and we have the Fair and everything that David has been talking about so we're really excited to start so.

我很高兴大家能来到这儿,除了习题集外我们还会遇到各种各样的问题,还有刚才David说过的,研讨会和其他东西,这门课开始了，我们真的觉得很高兴。

哈佛公开课 - 计算机科学课程节选