I'm interested in how these things are expressions of that person, their ideas, and their interactions with the world.
2019年6月四级真题（第三套）阅读 Section B
英语六级真题
In the video clips, the babies made various facial expressions in response to real life events including playful interactions and painful ones.
2019年12月六级真题（第一套）听力 Section C
This conversational robot companion has cameras in its eyes, which allow it to track patients and use appropriate facial expressions and body language in its interactions.
2018年12月六级真题（第二套）阅读 Section C
You have a little time to do research, prepare technical expressions and so on.
2016年6月六级真题（第一套）听力 Section A
柯林斯高阶英汉双解学习词典释义
N-VAR
表达;表述
The expression of ideas or feelings is the showing of them through words, actions, or artistic activities.