And when you use the "smile muscles" at the corners of your mouth, you change the direction of the blood flow inside your face in such a way that it causes the temperature of the blood to drop.
当你使用嘴角的“微笑肌肤肉”时，你改变了流进脸部血液的方向，用这种方式能降低血液的温度。
For others the difference is very subtle and for others it only becomes noticeable when they smile and contract the muscles in their face.
对于其他人来说，这样的区别是非常小的，只有当她们微笑的时候对比她们脸部肌肉的时候才能看出来。
Whenever we smile, nerves and muscles may transmit messages that turn on happiness centers in the brain, Laird speculates.
每当我们微笑时，神经和肌肉就会传递信息使大脑的快乐中心兴奋，莱尔德猜测说。
Along the way he identified a particular type of smile that engages both the zygomatic major and the orbicularis oculi - muscles that raise the corners of the mouth and cheeks, respectively.
根据这种方法，他辨识到一种特别的微笑方式，位于颧骨和眼轮眶肌间的肌肉分别带动嘴角和脸颊肌肉提起。
And they mean it: they smile with their eyes (a contraction of the orbicularis oculi facial muscles), not just their mouths.
这意味着：他们用眼睛微笑(面部上睑提肌肌肉的收缩)，而不仅仅是他们的嘴。
Well it was a French doctor in the 1860s who went to the trouble of stimulating facial muscles with electrical currents to discover what reveals a genuine smile.
1860年代有一个法国医生通过电流刺激面部肌肉的方法去寻找真心微笑的关键。
Muscles that could otherwise produce a smile. Unable to mimic.
简单的行动令其肌肉不能产生笑容。
Whenever we smile, nerves and muscles may transmit messages that turn on happiness centers in the brain, Laird speculates. "The bottom line is that a smile doesn't cost anything and may do you good."
拉瑞德推测，无论何时我们微笑，神经和肌肉会传送打开大脑中快乐中心的信息，“结果是一个微笑不花费任何成本而可以使你感觉良好。”
Another nonverbal sign of lying is a forced smile, which generally involves only the muscles of the mouth and not the rest of the face.
另一个说谎的征兆是强挤出来的笑容，这种笑容只是调动了嘴部的肌肉而不是整个脸部的肌肉。
A slow smile crosses her face as she watches everyone and slowly starts to flex her muscles.
她慢慢的微笑面对着注视她的每一个人然后慢慢的开始绷起她的肌肉。
To make the /i/ sound, raise the middle of your tongue high in your mouth and tense your muscles into a smile. Make a voiced sound.
发/i/的音时，抬起舌头的中间部分，让口腔肌肉变得紧张，做出微笑的样子，然后发声。
You're so cute you make my zygomaticus muscles contract. (muscles that make you smile).
你是如此可爱，让我的颧肌相遇。(让你微笑的肌肉。)
Face Time: When we laugh, as many as 15 small muscles squeeze our faces into a smile.
笑的时候，15小块肌肉会把我们的脸挤成一个笑脸。
It takes 17 muscles to smile, 43 muscles to frown.
微笑需要牵动17块肌肉，皱眉头要牵动43块肌肉。
It takes 72 muscles to frown, but only 14 to smile!
皱眉时需要72块肌肉，而微笑只需要14块。
Face Time: When we laugh, as many as 15 small muscles squeeze our faces into a smile. Increased blood flow there may turn us a bit pinker and give us a happy glow.
脸部：当我们笑时，有多达15个小肌肉挤压使我们开始微笑并加快血液流动有可能使我们脸部有点变红，并给我们一个幸福的热情。
The takes 72 muscles to frown, but only 14 to smile!
要向人们微笑。皱眉需要72块肌肉，而微笑只需要14块！
The takes 72 muscles to frown, but only 14 to smile!
要向人们微笑。皱眉需要72块肌肉，而微笑只需要14块！
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