她装出一副冷冰冰毫无表情的样子。

Her face was a cold blank mask.

《牛津词典》

我能从戴安娜面部表情的变化看出她的想法。

I can read Diana's thoughts from the changes in her facial expressions.

youdao

你不必努力地学习，去弄清楚这些不同面部表情的含义。

You don't have to work very hard to figure out what these different facial expressions mean.

youdao

The driver's expression and his hand stayed exactly the way they were, as if he didn't hear very well.

就像是没怎么听见似的,那个司机的表情和手几乎一动不动，“

耶鲁公开课 - 1945年后的美国小说课程节选

He says: I have met them at close of day Coming with vivid faces From counter or desk among grey Eighteenth-century houses.

他说：,我曾在黄昏时遇见他们,他们离开柜台或写字台,脸上带着生动的表情,从18世纪灰黑的房屋里走出。

耶鲁公开课 - 现代诗歌课程节选

They'll smile appropriately, making an important point that smiling is not learned by looking at other people's faces.

他们会适当地微笑，说明微笑不是学习的,通过观察其他人的面部表情。

耶鲁公开课 - 心理学导论课程节选