Parentheses are mathematical symbols and punctuation.

圆括号是数学运算符号，也是标点符号。

The employee's gender is shown in parentheses.

员工的性别被标示在圆括号中。

The teacher is explaining the difference between parentheses and square brackets.

老师正在讲解圆括号跟方括号的区别。

Irregular forms are given in parentheses.

不规则形式标注在括号内。

Remove redundant parentheses.

除去冗余括号。

An expression in parentheses.

用括号括起来的表达式。

The list is enclosed in parentheses.

该列表被括在括号里。

Find the deepest nested pair of parentheses.

找出嵌入最深的那对括号。