The smile on others' lips my happiness."

VOA: special.2009.11.15

Now, the person who is the mandated smiler, on three, please smile. One, two, three. Okay.

现在，要求微笑的一方，我数到三，微笑，一，二，三。

耶鲁公开课 - 心理学导论课程节选

The one on the right is a smile of greeting.

右边是打招呼的微笑。

耶鲁公开课 - 心理学导论课程节选

"If we can bring some smile on people's faces - even if we don't do it exactly like it was done before - if they like it, that makes us happy."

VOA: standard.2010.05.28

She is also a PhD candidate in Economics and is doing research on the behavior of options prices in a phenomenon called the "Options smile," as she's smiling at me right now.

她也在攻读经济学博士学位,目前正在研究"期权微笑",也就是,期权隐含波动率微笑现象中的价格变动趋势,她现在正对我微笑呢

耶鲁公开课 - 金融市场课程节选

But the look on everyone's face, when you are finished and packing, it is the best smile in the world;

VOA: special.2009.03.22

You know, even some goes pass you on the street and you don't smile ostensibly you don't smile-- there are certain micro-muscles in your face that are moving that actually make you feel better.

即使路人与你擦身而过时，你没笑,表面上你没有笑-,但你面部的细微肌肉,会收缩，让你感觉更好。

哈佛公开课 - 幸福课课程节选

His smile never left his face, but his fingers shook as he touched the flower on his coat.

VOA: special.2009.04.04