One important element of expressions is the variable.

表达式的重要元素是变量。

youdao

Note in the evaluation, if the pattern is a bound variable, or the element of the pattern is a bound variable, then the result of the pattern match becomes a comparison.

注意，如果模式是绑定的变量，或者模式的元素是绑定的变量，那么模式匹配的结果就会变成比较。

youdao

For this definition, add a with element and set the variable to activeMenuSelection.

对于此定义，添加一个with元素并把变量设置为activemenuselection。

youdao

By testing concepts on paper I came up with a 'noun' stack (operators like numbers and variable names) and 'verb' stack (every other element in the syntax chart).

FORBES: Steve Wozniak: His Career Challenges, Steve Jobs, Tech Trends and Advice