His expressions varied from poker-faced to blank.
他的表情在不露声色与茫然之间变幻不定。
Laughter is one of the most infectious expressions of emotion.
笑是最具感染力的感情表达方式之一。
These expressions are often used interchangeably, but they do have different meanings.
这些表达法经常可以互换使用，但它们的确有不同的含义。
We can use our eyes and facial expressions to communicate virtually every subtle nuance of emotion there is.
我们可以用眼睛和面部表情来如实地传达情感上的每一丝细微差别。
Psychological researchers generally recognize that facial expressions reflect emotional states.
心理学研究人员通常认为面部表情反映了情绪状态。
Moreover, people in diverse cultures recognize the emotions manifested by the facial expressions.
此外，不同文化的人们都能从面部表情看出其中展现的情绪。
Most investigators concur that certain facial expressions suggest the same emotions in all people.
大多数研究人员一致认为，对所有人来说，一些特定的面部表情都表明同样的情绪。
When dogs looked at the expressions of angry dogs, their eyes rested more on the mouth, perhaps to interpret the threatening expressions.
当狗狗看到愤怒的狗狗时，它们的眼睛更多地停留在嘴巴上，也许是为了分析那些威胁性的表情。
As the originator of the theory of evolution, Darwin believed that the universal recognition of facial expressions would have survival value.
作为进化论的创始人，达尔文认为对面部表情的普遍识别具有攸关存亡的价值。
Pollsters found almost half of those asked preferred the more informal "cheers", while others liked to use such expressions as "ta", "great" and "nice one".
调查者发现，近一半的被调查者更喜欢非正式的“cheers”，而其他人喜欢使用“ta”、“great”和“niceone”这样的表达。
The facial-feedback hypothesis argues, however, that the causal relationship between emotions and facial expressions can also work in the opposite direction.
然而，面部反馈假说认为，情绪和面部表情之间的因果关系可能反过来也是成立的。
"Still, gamification only stands to become more popular," he says, "as more and more people come into the workforce who are familiar with the structures and expressions of digital games."
不过，他表示，“随着越来越多熟悉数字游戏结构和表达方式的人进入职场，游戏化只会变得更受欢迎。”
Facial expressions aren't as important in live performances generally, because the choreographer knows that someone in the back row of a theater may not be able to see a dancer's face clearly.
面部表情在现场表演中通常不那么重要，因为编舞者知道坐在剧院后排的人可能看不清舞者的脸。
Try these methods and find your own ways to learn words and expressions.
试试这些方法，然后找到自己学习单词和表达的方法。
She can copy human facial expressions, hold conversations and recognize people by their looks or voices.
她可以模仿人类的面部表情，进行对话，并通过容貌或声音识别人类。
With lively expressions and bright eyes, the oxen show the spirit of doing hard work without complaints.
这几头牛表情活泼，眼睛明亮，表现出无怨无悔、努力工作的精神。
You can teach them that those feelings are never wrong and our expressions of feelings are in our control.
你可以告诉他们，那些感觉并不是错误的，我们的情感表达受我们控制。
When dogs looked at expressions of angry dogs, their eyes rested more on the mouth, perhaps to interpret the threatening expressions.
当狗狗看到愤怒的同类时，它们的视线更多地会落到嘴巴上，也许这样是为了解读威胁的表情。
The TV show tells one classic Chinese book of ancient times in each episode, letting rich history shake hands with modern expressions.
这个电视节目每集讲述一本中国古代的经典书籍，把丰富的历史与现代化的表达结合了起来。
More and more people agree that expressions such as "LOL" and "hahaha" are making our speech more direct but less interesting and creative.
越来越多的人认为，像“LOL”和“哈哈哈”等表达方式让我们的言语变得更加直接，却少了一些趣味性和创造性。
Plate movements are the surface expressions of motions in the mantle—the thick shell of rock that lies between Earth's crust and its metallic core.
板块运动是地幔运动的表面现象。地幔是位于地壳和金属内核之间的一层厚厚的岩石壳。
"With our study, we think we can now confidently conclude that at least some dogs can distinguish human facial expressions," Muller told Live Science.
穆勒告诉《生活科学》说：“通过我们的研究，我们认为我们现在可以自信地得出结论，至少有些狗可以分辨人类的面部表情。”
Those are both expressions of triumph.
其实这两种声音都在表达胜利的欢欣。
Americans use many expressions about fish and fishing.
美国人使用很多和鱼或捕鱼相关的表达。
This provides a good introduction to regular expressions.
这篇文章对正则表达式进行了很好的介绍。
And I see those machines as just expressions of human creativity.
我把这些机器当作是人类表达创造力的途径。
So it is not surprising that there are many expressions about cats.
所以，有许多关于猫的短语就不足为奇了。
So it is not surprising that there are many expressions about cats.
所以，有许多关于猫的短语就不足为奇了。
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