表達式的用法和樣例：
例句
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在COBOL系統中，由一個數據項、算術表達式或條件表達式表示的信息。
In the COBOL system, the information represented by a data item, arithmetic expression, or conditional expression. -
方括弧，中括弧符號之一，用於托住一手寫或印刷或標明被視作單一數量單位的數字錶達式
One of a pair of marks, [ ], used to enclose written or printed material or to indicate a mathematical expression considered in some sense a single quantity. -
一種常數、變數、函數名或表達式。
A constant, variable, function name, or expression. -
被除數被另一個數除的表達式；被除數
An expression to be divided by another; a dividend.
