If it's a true happiness smile, that's actually bodes better for the relationship than a Pan Am, or greeting smile.

如果是一个真正开心的微笑，对这段感情来说是个好兆头,比问候式微笑好的多。

耶鲁公开课 - 心理学导论课程节选

Exactly! So you know, if you experience these emotions, it's a good sign.

没错，所以，如果你们体会到这些情绪，那是个好兆头。

哈佛公开课 - 幸福课课程节选

Now, that sounds dark to us, ominous.

可现在的我们听起来阴暗,坏兆头啊

耶鲁公开课 - 聆听音乐课程节选