In fact you physically CAN't say it while smiling.

事实上你在笑时是无法说出它的。

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If you saw a father patting his son on the back while smiling happily, what would you think was going on?

如果你看到一个父亲愉快地微笑着，拍拍他儿子的背部，你会认为正在发生什么事情？

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The act of smiling is so strongly associated with positive feelings that it's almost impossible to feel bad while smiling.

微笑这一行为与正面积极的情感如此紧密地联系在一起，所以当你微笑时，你感觉沮丧的几率微乎其微。

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While smiling big and playing nice, Silverman announced a massive overhaul to the schedule Reilly so ebulliently touted at May's upfront presentation.

FORBES: Silverman Sends A Message

And while we are smiling at our TVs, you show us the polar bears and we buy the Cokes.

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Two giggling young women roll up their sleeves as Motsepe signs their arms with a black marker, smiling while admirers snap photos with cell phones.

FORBES: Magazine Article