像下面两句里的then的用法是怎样的?是怎么加到一个句子里的?Why is it,then,th

像下面两句里的then的用法是怎样的?是怎么加到一个句子里的?Why is it,then,th
像下面两句里的then的用法是怎样的?是怎么加到一个句子里的?
Why is it,then,that so few people live up to their true potential?
We learn,then,not to put ourselves into situations where we might fail,because failure has tremendous social stigma.