Some command line parsers, like GNU's getopt_long for C and pflag for
Musical theatre
，详情可参考heLLoword翻译官方下载
云耀深维打印的传动泵（图源/企业），详情可参考谷歌浏览器下载
change the meaning of flags that follow them. e.g. setting the output format
Овечкин продлил безголевую серию в составе Вашингтона09:40