You learned about restrictions on security plug-ins, and common errors encountered while working with them to help you debug problems when implementing security plug-ins on your own.

通过本文还可以了解安全性插件的一些限制，使用安全性插件时可能遇到的一些常见问题，从而有助于您在实现自己的安全性插件时调试问题。

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Israeli Social Security System is a combination of history and reality. In the aspect of function, it owns the common features of general Social Security Systems and its own specific characteristics.

以色列社会保障制度是历史与现实相结合的产物，其作用既有一般社会保障制度的普遍性，又有特殊性。

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But BBC Europe correspondent Chris Morris says the UK has also called for much tougher action against those who abuse the system, arguing that rules that allow recent arrivals who have never been employed or paid taxes to claim the same social security benefits as a member state's own citizens were an affront to common sense and should be reviewed urgently.

BBC: EU unveils plans to help migrant workers

This is the essence of our alliance -- two peoples, bound by common values and committed to the security, the prosperity, and the dignity not just of our own citizens, but those far beyond our borders.

WHITEHOUSE: President Obama and Chancellor Merkel Press Conference