慢速英语:美国多个城市质疑警方使用面部识别技术

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artificial –adj. not natural or real : made, produced, or done to seem like something natural​

hysteria –n. a situation in which many people behave or react in an extreme or uncontrolled way because of fear, anger, etc.​

match –v. to make or see a connection or relationship between (two people or things​

pose –n. the position in which someone stands, sits, lies down, etc., especially as a model for a photograph, painting, etc.​

accuracy –n. freedom from mistake or error : the quality or state of being accurate​

uNPRecedented –adj. not done or experienced before​

scale –n. the size or level of something especially in comparison to something else​