When it's all said and done,一般用于言已出,事已为之后.
也可以说,当一切都结束了,当事情都做完了.
例句：
When it's all said and done,I want people to say,"Gosh,she was fearless.
当一切完成了,我想要人们说：“天啊,她很勇敢.
But I am confident that when it's all said and done,there will be a robust plan.
但是我相信,当所有的辩论结束的时候,最终会有一个强有力的计划.