Minus sign
01
减号, 负号
the sign (-) that is used in mathematics
例子
In the expression -10, the minus sign indicates a negative number.
在表达式-10中,减号表示一个负数。
The equation 5 - 3 = 2 uses the minus sign to indicate subtraction.
方程5 - 3 = 2使用减号表示减法。



























