So now, the enzyme is locked up with being built, and the penicillin has effectively killed the bacteria.

所以这是我第一次感受到,我想在单个原子的层面上思考这些分子,所以这时我的专业转到了化学方向。

麻省理工公开课 - 化学原理课程节选

and so ended up changing majors and focusing at that point on organizational development

所以我选择了转专业，希望在组织发展学科继续发展。

已经成经济学学徒了 - SpeakingMax英语口语达人

All right. So we can switch back actually to our notes here -- oh, do we have--?

好的，所以我们可以转回到讲义,哦，我们，？

麻省理工公开课 - 化学原理课程节选

so you can, yeah, you can use it to go around the park, or you can use it to get from place to place, I think.

所以，你能用它去公园转，或者你可以用它从一个地方去另一个地方。

伦敦的蓝色自行车 - SpeakingMax英语口语达人