can anyone fail to obey a request like this or not?求翻译

有人能拒绝这样一个请求吗?
ps：or not可不译,注意逐一理清否定,双重否定即为肯定.or not 加上的话是什么意思呢 还是 or no 本身就没有意思本身就没意思，这样的例子相信你也见过如：wether=wether or not我没见过 能举些例子吗Ask him whether he can come.Ask him whether he can come or not.问问他是否能来。I don't know whether you like flowers, sir.I don't know whether you like flowers or not, sir.先生,我不知道您是否喜欢花。