妈妈正在对我们微笑。

Mum was smiling at us.

youdao

我微笑着，回头向我妈妈挥手。

I smiled, waving back to my mother.

youdao

我把它扔在哥哥的床上，看了好长时间，才把它穿上，然后走了出去，微笑着对妈妈说了声“谢谢”。

I threw it on my brother's bed and looked at it for a long time before I put it on and went out, smiling a "thank you" to my mom.

youdao

When their mother approaches there they give a real happiness smile.

当妈妈接近时,他们是真正开心的微笑。

耶鲁公开课 - 心理学导论课程节选