a million years —百万年，not in a million years“某人根本没可能做某事；在我有生之年；一百万年都不会”。

【例句】
Will I ever accept his apology? Not in a million years.
我是否会接受他的道歉？在我有生之年都不会。

Simpson told BBC Newsbeat "not in a million years" would they reform.
辛普森对BBC记者称，“有生之年内”他们不会再登台表演。