然而它与六大基本情绪不同，它不具备明显特征化的面部表情，这也解释了它之所以长久潜伏未经研究发现的原因。

However, unlike the Big Six emotions, it does not have an obvious characteristic facial expression, which may explain why it has slipped under the research radar for so long.

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为了帮助解答演讲的具体问题，我们将影响发言的无文字行为分为三大类型：肢体语言、眼神交流、面部表情。

To help answer specific questions about presenting a speech, we will consider three major categories of nonverbal behavior that affect delivery: body language, eye contact, facial expression.

youdao

这些是六大情绪，直接从字面上理解一览无余的情绪——世界各地每个人所展现的同样戏剧性和特征化的面部表情。

These are the Big Six, quite literally, the in-your-face emotions - the ones that everyone the world over exhibits with the same dramatic and characteristic facial expressions.

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