The story behind her success is it's a long story.

她的成功背后说来话长。

Long story short, they made up.

长话短说，他们和好了。

How we met is it's a long story.

我们的相识说来话长。

Long story short, we won the game.

长话短说，我们赢得了比赛。

Long story short, she found her keys.

长话短说，她找到了她的钥匙。

Their relationship is it's a long story.

他们之间的关系说来话长。

Our travel experience is it's a long story.

我们的旅行经历说来话长。

Why he left the company is it's a long story.

他为什么离开公司，说来话长。

Long story short, we decided to cancel the trip.

长话短说，我们决定取消旅行计划。

Long story short, he eventually accepted the job.

长话短说，他最终还是接受了那份工作。