Xiao Hong: Children seem naive, without face and facial expression, stamping on the sphere of Buddha; his is considered as a little dharma protector.

肖红：小孩显得幼稚，没有脸面，没有表情，呆呆的，踩在一个佛陀的世界上，把他当做一个小护法神。

youdao

Zhao Li: But why is there no face, and no facial expression?

赵力：为什么没有脸，没有脸部表情的表现?。

youdao

A facial expression recognition system contains face detection, face feature extraction, feature selection and expression classification.

表情识别系统包括人脸检测、人脸特征提取、特征选择以及表情分类等几部分。

youdao

As he begins to backtrack, she jolts upright, stares back in shock, then in mock shock, shifting in subtle increments until she smiles, lets her face go blank again, and leans back into his arms with relaxed panic, a twenty-sided facial expression that should earn Lauren Graham a special Emmy.

NEWYORKER: Warming Trend