她认为她那两岁的儿子沾沾自喜、洋洋得意的咧嘴一笑，足以把她推向崩溃的边缘，但她仍然保持镇定。

She thought his smug two-year-old grin of self-amusement and satisfaction would drive her to the brink, but she maintained her composure.

youdao

特点：虽然没有火辣的身材，但她却有着“治愈系”的外形——她的一颦一笑都能够温暖人心。

Characteristic: While she has no hot figure, her looks are considered "healing" - her presence and beauty can comfort the heart.

youdao

但她只是莞尔一笑，眼里并没有任何表示。

But she had only smiled a little and her eyes had admitted nothing.

youdao

And this is my colleague, Marianne LaFrance, who is actually not smiling in that picture but she studies smiling and smiling in adults, smiling in children, smiling across cultures, and the different social uses of smiling.

另一位是我的同事，法国人玛丽安，她在照片上没有笑,但她研究微笑，成人的微笑，孩子的微笑，文明的微笑，微笑的不同社会功用。

耶鲁公开课 - 心理学导论课程节选