I wish that September 11 never happened, and wish it never happens again.

我希望9.11从未发生，也希望它永远不会再发生。

youdao

That should not have happened, and I'll try to make sure that it never happens again.

不应该有什么事情发生了，我会尽量确保它的事情不会再发生。

youdao

If you get legitimate negative feedback, thank the reviewer for pointing it out... and explain the steps you're taking to ensure it never happens again.

如果你收到的负面反馈是合乎情理的，首先要对评论者提出的问题表示感谢，接下来要向其解释你会采取什么措施来保证同样的问题不会再次出现？

youdao

"I pray to God that it never happens to anybody again,"

VOA: standard.2010.01.30

These principles are crucial for solving today's illegal immigration problem and ensuring that it never happens again.

WSJ: Marco Rubio: The Immigration Reform Opportunity

"My job is to find out what happened and make sure it never happens again, " Eckert added.

CNN: More lead-paint toy recalls coming, source says

But the question is what lessons we can learn from this disaster to make sure it never happens again.

WHITEHOUSE: Weekly Address: BP Oil Spill Independent Commission