老师要善于举一反三。

A teacher should be good at drawing inferences about other cases from one instance.

《新英汉大辞典》

这一反自反性可以用来建立一个等价关系。

This irreflexivity can be used to set up an equivalence relation.

youdao

中国的两个股市一反周一4%的大幅下跌，转而上升了。

The country’s two stock exchanges shrugged off Monday’s blues, when both indices dropped by about 4%, and gained a bit instead.

youdao

so you can see that there is going to be two sets in antibonding, three sets in bonding for a net of one, giving us the single bond.

因此你能看到,反键轨道上有两组，三组成键，得到一组净成键，所以成的是单键。

麻省理工公开课 - 固态化学导论课程节选

But Yum Brands responded in a very interesting way when the call to remove trans fat first came out.

但百胜餐饮集团对撤除反式脂肪酸的号召,刚一出台时的回应十分有趣

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

I could have done this in another way but I am going to just be extra deliberate so I make sure that this copy ends with back slash zero and voila, now, I have a copy.

我可以用另外一种方式来处理,我确保这个拷贝由反斜杠0结尾,那样，现在我得到了一个拷贝。

哈佛公开课 - 计算机科学课程节选