Note: This regular expression should not be used in production environments as it is not secure against XSS attacks.

注意：这个正则表达式不应该使用在生产环境中，因为它对于XSS攻击不安全。

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The minority who are hurting other people in such cases should be prevented, but this behavior should not disturb the majority's freedom of expression.

应该预防少数此类伤害他人的行为，但是不该影响到更重要的表达自由。

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Natural expression - the subject's expression should be natural, with both eyes open. Please refer to the photographs found on this website for acceptable facial expressions.

表情自然—被拍摄者的表情应该自然，双眼睁开。请参考本网页上的拍摄部分了解可被接受的面部表情。

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