他认为，在公园的一些公共标志。

He sees some public signs in the park.

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开发一些具有私有和公共密钥的标准或标志脚本，这些脚本要确实进行检查，以保证所引入的脚本真正经过了身份验证。

Develop some standard or signing scripts with private and public keys that actually check to ascertain that the script introduced is really authenticated.

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重写公共标志定义的方法会将一个普通对象转变成独特对象，因为这回改变一些内部的默认行为。

Overwriting a method defined with a well-known symbol changes an ordinary object to an exotic object because this changes some internal default behavior.

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