微表情是人在试图隐藏或者控制某种情绪时不自觉地表现出来、且持续时间很短的一种面部表情。
A microexpression is a brief, involuntary facial expression shown on the face of humans when one is trying to conceal or repress an emotion.
如果她看了我脸上细微的表情，她会看出我脸上有隐藏恐惧的征兆。
If she'd seen my microexpression, she would have seen concealed signs of fear on my face.
那种带着一张“扑克脸孔”的人，他的情绪隐藏于毫无表情的面容下，会被别人以怀疑的眼光看待。
People with a "poker face," whose emotions are hidden by a deadpan expression, are looked upon with suspicion.
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