翻译他决定用他的下半身去实现做一个光荣的中学教师的梦想

下半生吧……如果是下半身的话这个提问可就有点……

He decides to realise his dream to be a glorious teacher of middle school in the rest of his life.

He decided to use his lower body to achieve a glorious dream of secondary school teachers

He decided to use his the rest of his life to achieve a glorious dream of secondary school teachers