But the truth is you don't have to be a millionaire to live the high life.还有 don't have to be 的用法··,

But the truth is you don't have to be a millionaire to live the high life.还有 don't have to be 的用法··,
But the truth is you don't have to be a millionaire to live the high life.
还有 don't have to be 的用法··,

But the truth is you don't have to be a millionaire to live the high life.还有 don't have to be 的用法··,
但是,事实是你并不需要成为一个生活在上流社会的百万富翁
have to do.需要（必须）做.
否定形式是don't have to do .这里的be是be动词

但事实是你不必成为一个百万富翁来过好日子。

但事实上你不得不像个百万富翁一样过着奢侈生活.
don't have to
不得不

但事实上，你没必要一定要成为一个过着优质生活的百万富翁

但事实是，你不必为了上层社会豪华的生活成为百万富翁。
don't have to be 不必成为

但事实是，要过高质量的生活，并不一定要成为百万富翁。
don't have to 后面跟do或者be都可以，要跟原形
前面的do not 可以随时态或者人称变化

但事实上，你没必要等到成了百万富翁才去追求高质量的生活。