克罗斯没有回答；他的面部表情没有改变。

Cross didn't answer; his facial expression didn't change.

《柯林斯英汉双解大词典》

我们可以用眼睛和面部表情来如实地传达情感上的每一丝细微差别。

We can use our eyes and facial expressions to communicate virtually every subtle nuance of emotion there is.

《柯林斯英汉双解大词典》

看她的面部表情，就什么都明白了。

Her face told its own story.

《牛津词典》

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

the face being drawn back in a universal expression that every human everywhere would be able to recognize.

用一种普遍的面部表情，脸被后拉,任何地点，任何人都能辨认。

耶鲁公开课 - 心理学导论课程节选

If you're stuck, if you're struggling, if you're not certain about something, please ask. We're not mind readers, we can't tell when you're struggling, other than sort of seeing the expression on your face, we need your help in identifying that.

如果你很差，如果你很纠结，如果你不确定某件事情，请问我们，我们不会读心术，我们没法儿看出来你们很纠结，除非能从你们的面部表情看出来，我们需要你们在这件事儿上的配合。

麻省理工公开课 - 计算机科学及编程导论课程节选