我微笑不语，因为我知道明天的情况绝对与他想象的大不相同。

I smiled. I knew the next day was going to be different from what he was anticipating.

youdao

我的一位朋友也不例外，他在商队旅馆里有一食品摊位，正朝我咧嘴微笑，露出一排金色的牙齿。

My friend, who has a food stall in the caravanserai, is no exception and grins at me with an entire set of glinting gold.

youdao

我坚定地微笑着并说道：“不，不是每件事情都像这样的。”

I smiled and said, firmly, "No." There would never be anything like that.

youdao

Professor Paul Bloom: I don't know if that's--The question is, "Is there a difference between smiling with your teeth versus just your lips closed?"

我不知道是否，问题是，微笑露齿与不露齿有不同吗“

耶鲁公开课 - 心理学导论课程节选

I don't know. There's evidence that the coy smile shows up in non The question was, "Do nonhuman primates give the same smiles that humans do?

我不知道，有证据表明,腼腆微笑在非人类,问题是，灵长类和人类微笑相同吗？

耶鲁公开课 - 心理学导论课程节选