V2EX available expressions

Available Expressions

Definition / 释义

available expressions可用的表达式/可用表达。常用于编程、软件界面、语法说明或表单规则中,指在某个系统/语境里允许使用、可选择或可被识别的一组表达式。(更广义上也可理解为“现成可用的表达方式”。)

Pronunciation / 发音

/velbl ksprnz/

Examples / 例句

Please choose one of the available expressions from the list.
请从列表中选择一个可用的表达式。

Depending on the template engine, the available expressions may include conditionals, loops, and function calls.
根据模板引擎的不同,可用的表达式可能包括条件判断、循环以及函数调用。

Etymology / 词源

  • available 来自中古法语 available,源头与拉丁语 valere(“有价值、有效、有力量”)相关,逐渐发展出“可获得的、可用的”之意。
  • expression 来自拉丁语 exprimereex- “向外” + premere “压、挤”),原义有“挤出、表达出来”,引申为“表达;表情;(数学/计算机)表达式”。
    合在一起的短语多为现代技术语境中的组合用法。

Related Words / 相关词

Literary Works / 文学作品

该短语整体更常见于技术文档/教程,在经典文学中不算固定搭配;但其核心词在文学与非虚构作品中很常见,例如:

  • available:Jane Austen《Pride and Prejudice》(《傲慢与偏见》)
  • expressions:Charles Dickens《Great Expectations》(《远大前程》)
  • expression:Mary Shelley《Frankenstein》(《弗兰肯斯坦》)
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