“别在小鸡孵出之前就数鸡”，常用于口语中。

Don n't count your chickens before they are hatched.

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对于有些人来说，Mozilla XML处理能力中皇冠上的珠宝是XML User Interface Language (XML用户接口语言，XUL)，即一种用于描述跨平台用户接口的标记语言。

For some people, the crown jewel of Mozilla's XML capabilities is XML user interface language (XUL), a markup language for describing cross-platform user interfaces.

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成语往往是非正式的，最好用于口语，而不要用在非书面表达中。

Idioms tend to be informal and are best used in oken rather than written English.

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