It's called code switching.

这称之为代码转换。

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Code switching is a common phenomenon in language communication.

在言语交际中语码转换现象非常普遍。

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Code choice and code switching are general phenomena in social language.

语码选择与转换是一种普遍的社会语言现象。

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It is thought that this may come from the "code-switching" of thinking in two different languages.

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He would give taxpayers the option of switching to a simpler, flatter tax code.

ECONOMIST: John McCain's economics

Its staff of biologists and astrophysicists uses pattern-recognition software to get a clear picture of how all these genes are switching on and off, literally following how the genetic code is creating and recreating the body.

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