人类的面部表情与动物是不同的，这种不同体现在两者能有意识地控制面部表情的程度是有差别的。

Human facial expressions differ from those of animals in the degree they can be controlled on purpose.

youdao

人类的面部表情与动物是不同的，这种不同体现在两者能有意识地控制面部表情的程度是有差别的。

Human facial expressions differ from those of animals in the degree they can be controlled on purpose.

youdao