To understand where the double-checked locking idiom originated, you must understand the common singleton creation idiom, which is illustrated in Listing 1.

要理解双重检查锁定习语是从哪里起源的，就必须理解通用单例创建习语，如清单1中的阐释？

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The idiom outlined in Listing 3 is not guaranteed to work at all times, but Listing 4's idiom is.

清单3中体现出的风格不一定在所有情况下都可行，但清单4的风格就可以。

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The idiom is a unique appearance in Chinese vocabulary . The form and structure of the Chinese idiom carry the national cultural characteristics of the Han ethnic group.

汉语成语在汉语词汇中极富个性，无论它所承载的丰厚汉民族文化历史内容，还是它鲜明独特的外在形态、语音形式与内部成分和结构。

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By default, an app and a view controller's supported interface orientations are set toUIInterfaceOrientationMaskAll for the iPad idiom and UIInterfaceOrientationMaskAllButUpsideDown for the iPhone idiom.

ENGADGET: Apple seeds iOS 6 beta 4 to developers: here's the changelog

The earliest recordings were made in the blues idiom, aimed solidly at the African-American "race" market.

WSJ: Playing Hand to Mouth | By Will Friedwald

Mr Sullivan has an ear for lyrical phrases and for catching the idiom of everyday speech.

ECONOMIST: American essays