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1·There are exercises that tauten facial muscles.

有些练习可以让面部肌肉紧绷起来。《柯林斯英汉双解大词典》

2·The contraction of facial muscles both influences the internal emotional state and reflects it.

面部肌肉的收缩既能影响人的内心情绪，又能将它反映出来。

3·Intense contraction of facial muscles, such as those used in signifying fear, heightens arousal.

面部肌肉因紧张而收缩会加强这种刺激，如人们感到恐惧时所表现出的肌肉收缩。

4·In fact, various emotional states give rise to certain patterns of electrical activity in the facial muscles and in the brain.

事实上，不同的情绪状态会在面部肌肉和大脑中产生特定的脑电活动模式。

5·That results from the sustained contraction of the facial muscles.

由于面部肌肉的持续收缩。

6·A tense vowel requires you to use a lot of facial muscles to produce.

要发一个长元音，你得动用很多面部肌肉。

7·Release any worry, stress and tension by relaxing your facial muscles.

通过放松你的面部表情来释放烦恼，压力和紧张。

8·Even at this distance she could see how his facial muscles were contorting.

甚至离这么远，她也能看见他面部的肌肉扭曲了。

9·When your eyes are tired, you're squinting will make your facial muscles tired.

当你双眼困顿眯着眼睛时，你的脸部肌肉也会疲劳。

10·Involuntary - A micro-expression is caused by involuntary movements in facial muscles.

非自愿 -一个微型的表达是由面部肌肉不自主运动研究。