To better understand this, let's return to the world database and consider two of its tables, Country and City, which are linked to each other via the code foreign key.

为了更好地理解这一点，我们回到world数据库并考虑它的两个表Country和City，此二者通过code外键相互链接在一起。

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They warned against "foreign meddling", usually code for Iranian interference; most of Bahrain's protesters were Shia, but there is no evidence that they were helped by Iran.

他们警告“外国干涉者”，通常暗指了伊朗的干涉。虽然大部分巴林抗议者是仕叶派，但是没有任何证据显示他们接受了伊朗的帮助。

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In any case, Mr Zenawi has signed up for a code of electoral conduct and invited foreign election observers in.

但是，不管怎么说，泽纳维已经签署一项选举行为法案并邀请外国选举观察员进入。

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And last week the government moved to overrule the Supreme Court and change the tax code to tax foreign takeovers retroactively, not least Vodafone's purchase of its Indian arm.

ECONOMIST: India��s economy

Burma awaits an updated foreign investment code with stronger rights, protections and tax incentives.

BBC: Investors eye resourceful Burma

There may be no more vexing challenge in the Revenue Code than the taxation of foreign transactions of multinational companies.

FORBES: A New Way To Address The International Tax Mess For U.S. Companies