可以进行这样的省略是因为Ruby支持参数的默认值。

I got away with that omission because Ruby supports default values for parameters.

youdao

XSLT 处理器在命令调用的时候支持参数的使用，允许在提取文件中动态替换参数值。

XSLT processors support the use of parameters at command invocation, allowing for dynamic substitution of parameter values in the extraction file.

youdao

Rational Team Concert并不会识别到该复选框；rational Team Concert支持参数的多个值显示为一个列表框，而参数的单个值显示为一个组合框。

Rational Team Concert does not recognize this check box; Rational Team Concert allows multiple values for parameters shown as a list box and single values for parameters shown as a combo box.

youdao