the fundamental and the incidental 本与末 ; 主次
The opening and closing ceremonies of many kinds of sports meeting and the incidental large scale literature art and sports performance are included in the stadium celebration.
体育场庆典活动主要是指各类运动会的开幕、闭幕仪式以及同时举行的大型文艺体育表演。
For example, deciding when the order of child elements is meaningful and when it is incidental is strictly an application-level issue.
比如,确定子元素的顺序什么时候有意义,什么时候是偶然的,这些就与具体的应用级别密切相关。
The real body of a program is descriptions of its algorithms, structure, purpose, and usage -- the source code that implements it is almost incidental.
程序的真正主体是对它的算法、结构、目的和用法的描述——实现它的源代码并不是主要的。
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