So they've got these superhighways which is, I don't know if you've seen them, they are marked on in blue.

所以，他们修了这些高速路，我不知道你见过没有，他们被标成蓝色了。

伦敦的蓝色自行车 - SpeakingMax英语口语达人

So we try to model how... like what kind of bids they give and

我们就试着建模，怎样……比方说他们投什么标还有

有趣的研究课题 - SpeakingMax英语口语达人