此方法的问题是需要太多的手动步骤和自定义代码，这很容易出错。
The problems with this approach are too many manual steps and custom code, which are very error-prone.
问题是，这很容易使一个Web浏览器模拟。
Problem is, it's easy to make one Web browser impersonate another one.
问题是，这很容易使一个Web浏览器模拟。
Problem is, it's easy to make one Web browser impersonate another one.
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