If we think about bringing in those last two carbons, what you can see is that for every carbon, two of its hybrid orbitals are being used to bond to other carbons.

如果我们考虑引入最后两个碳原子，你会看到的是对于每个碳原子，其中的两个杂化轨道,和另外的碳原子成键。

麻省理工公开课 - 化学原理课程节选

However, like a sporting contest, a beauty pageant can also be used to inspire its viewers.

可是，选美比赛也可以像体育比赛一样激励观众。

选美大会，很不错 - SpeakingMax英语口语达人

And if you want to understand why so many white Southerners, especially in the Deep South, went to such great extents to save their slave society, remember the kinds of arguments and language used by its defenders.

如果你们想知道为何如此多的南方白种人,特别是南方腹地的人们,想要最大程度地保住他们的奴隶制社会,那就揣摩一下这些辩护者所使用的论断,和他们的语言,措辞

耶鲁公开课 - 美国内战与重建课程节选

So It's on television all the time, but television used to be almost 100% of the marketing and its share of the overall marketing burden if you call it that has--is going down, but other things have taken its place.

它不停地在电视上播放,营销中,电视过去占有份额是100%,如今它占整体营销开支的份额在下降,还会发生其它事情

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