This unfortunately means that there is not much that can be done about one-off noise, like someone trying to learn to play a trumpet.

可惜，这意味着对于一次性的噪音没有什么办法，比如有人尝试学习吹小号产生的噪音。

youdao

It was just a one-off; it won't happen again.

这事绝无仅有；不会再发生了。

《牛津词典》

Her idea is: live a life and try not to create any rubbish; use different kinds of ways to save the environment, such as stopping the use of one-off objects; giving unwanted things to others or donating these things to organizations like the Red Cross.

她的想法是：好好生活，不制造一点垃圾；采取不同的方式拯救环境，比如停止使用一次性物品；把不想要的东西给别人，或者捐给像红十字会这样的组织机构。

youdao

You would not want to get off one horse and on to another in the middle of a river.

VOA: special.2009.07.12

But as soon as the most recently called function finishes executing, you have to take that tray off the stack in order to get at the previous function's memory, and once he's done executing, you have to take that one off and then what's left well then main.

但是，一旦新的调用函数结束了执行,你必须从堆中把托盘拿掉,用来获得先前函数的内存，一旦他完成执行，你必须把那一块拿下来,然后剩下的是main函数。

哈佛公开课 - 计算机科学课程节选

But yeah, I think you'd probably be better off asking one of the organizers here about like this specific event.

你最好去那边问问这次活动的组织者。

关于世界地球日 - SpeakingMax英语口语达人

The party took three seats from the Tories and one off the Lib Dems in Chorley.

BBC: Labour win Chorley in Lancashire council election

It would be fun to make a secret surf level or something, like a one off.

FORBES: Connect

And again yes, a pile of bananas in the local supermarket will set one off.

FORBES: Japan Bans Bananas: From the Annals of Government Stupidity