That's where I can have moral or immoral behavior toward my best friend or baby, or other people in general.

我可以选择道德和不道德的行为,对待最好的朋友，孩子或一般人。

哈佛公开课 - 幸福课课程节选

So I threw a party in New York, and her best friend, my co-worker came, and she brought her,

我在纽约开了个派对，而她最好的朋友，也就是我的同事，把她带到派对上去了。

第一次与妻子见面 - SpeakingMax英语口语达人

For example, I can-- and having the past experience-- envy towards my best friend, that in and of itself does not make me a bad person.

举个例子，我可以…,因为以前的经历-,嫉妒我最好的朋友，那种情绪本身不代表我是个坏人。

哈佛公开课 - 幸福课课程节选

I've already met your best friend.

我已经见过你最好的朋友了。

I've already 实战 - SpeakingMax英语口语达人

If I showed your best friend a picture of you versus a mirror image picture of you, your best friend would say he or she likes the picture more because that corresponds to what he or she sees each day.

如果我让你好朋友看你的照片,和一张你照在镜子里的照片，你的好朋友会更喜欢你的照片,因为那张照片上的内容是他们每天都看到的。

耶鲁公开课 - 心理学导论课程节选

- This one was among our favorite-- "I was you at the CS50 Fair; I went to your station ; to see your program, you were my best friend; but when our hands touched as you handed me a Smiley face sticker, my heart skipped a beat.

这是我们最喜欢的-,“我和你一样在CS50大会上，我到你的网站看你的程序,你是我最好的朋友;,但是当我们牵手的时候,你传给我一张笑脸贴纸，我的心跳加速“

哈佛公开课 - 计算机科学课程节选

I can still experience envy toward my best friend and choose to behave generously and benevolently toward him.

我仍会嫉妒最好的朋友,但选择对他宽容和亲切。

哈佛公开课 - 幸福课课程节选