But the presence of the dog there is a conditioned stimulus and so you grew to be afraid of dogs.

而这时狗的存在就变成了条件刺激,所以你开始对狗心生恐惧。

耶鲁公开课 - 心理学导论课程节选

So even though we might have started with 500 some odd people, it very quickly became a 250 person problem and then a 125 person problem.

尽管刚开始的时候,人数是500左右，很快就变成了一个250人的问题,再变成125人的问题。

哈佛公开课 - 计算机科学课程节选

It starts out ugly and becomes a beautiful swan.

开始很丑,然后变成一只美丽的天鹅

耶鲁公开课 - 死亡课程节选

So, in the case of boron plus 1, what we are starting with is the ion, so we're starting with a 2 s electron, 2 s 1 and then we're going to 2 s 1 here.

在正一价硼中，我们面对的是这个离子，本来就应该从，2，s，电子开始，然后这里变成。

麻省理工公开课 - 化学原理课程节选