Smiling is much more then just a facial expression.
微笑绝不仅仅只是普通的面部表情。
Can there be a facial expression of emotion without emotion?
没有情绪会不会产生面部表情？
Smile is a facial expression, has nothing to do with happiness.
笑只是个表情、与快乐无关。
They found that every facial expression is connected to a certain color.
他们发现每个面部表情都与某种颜色有关。
We can tell whether a man is angry or happy from his facial expression.
我们可以从一个人的面部表情看出他是生气还是高兴。（议论文）
But making a particular facial expression is just the first step of a smile.
但做出某种特别的面部表情，只是微笑的第一步。
It has a distinctive facial expression again.
又一次有了与众不同的面部表情。
A smile is the universal facial expression -it is intended to put people at ease.
微笑是普遍运用的面部表情，它能安人心境。
Your facial expression may be a little different for a couple of weeks.
你脸部表情可能有几个星期会有些不同。
It is a basic emotion with a characteristic facial expression.
这是很基本的一种情绪，还伴有特定的面部表情。
He's got a great personality and a thought-provoking facial expression.
他有一个伟大的人格和发人深省的面部表情。
The most common sign is a micro-facial expression - lasting one-fifth of a second.
最常见的就是仅仅持续五分之一秒的面部微表情。
Human facial expression recognition is a very important but also difficult subject.
人脸表情识别是模式识别中一个非常重要却十分复杂的课题。
An emoticon is a textual portrayal of a writer's mood or facial expression.
（符号表情）是书写者情绪或者面部表情的文字表现方式。
The most common sign is a micro-facial expression – lasting 3 one-fifth of a second.
最常见的就是仅仅持续五分之一秒的面部微表情。
Have a sincere facial expression to further win support and trust.
具有真诚的表情会更好地赢得信任和支持。
If you are in a good mood, you also can choose a smile facial expression.
心情好时，又可以选择哈哈大笑的表情形象。
If you are in a good mood, you also can choose a smile facial expression.
心情好时，又可以选择哈哈大笑的表情形象。
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