Alright, perhaps we should do a practice run of the presentation first.

好的，可能我们应该先练习一下展示的流程。

Listen for the expression " practice run" .

请听短语 practice run。

So what is the meaning of " practice run" ?

那么 practice run 是什么意思呢？

So explain how this practice run's going to work.

那就解释一下这次演习是怎么进行的。

All right. Perhaps we should do a practice run of the presentation first.

好的，可能我们应该先练习一下展示的流程。

If you practice running 800 meters, count the milliseconds, not the minutes.

如果你练习跑800米，以毫秒计时而不是分钟。

" Practice run" means to try something before you do it.

practice run 的意思是在正式做某事前先演练一下。

The practice run helped workers be sure that the frame is fit for purpose.

实践运行帮助工人确保框架适合用途。

Our expression today is " practice run" , from the movie " Going In Style" .

我们今天的短语是 practice run，出自电影《三个老枪手》。

The practice ran as the second response from the allies this week to North Korea's nuclear threats.

这次演练是本周内第二次对朝鲜核威胁做出回应。

I'm hard at it on a practice run, trying to get fit for a marathon I'm taking part in next month.

我练习跑步很卖力，我想为下个月参加的马拉松比赛做好准备。

Then I practiced running to Wrenfield and back in a night.

然后我练习跑到雷恩菲尔德， 然后跑回夜晚。

It may be a practice run before terraforming a larger, more sustainable ecosystem.

这可能是在地球化更大、更可持续的生态系统之前进行的一次实践。

D To practice running on their way to class.

D 在去上课的路上练习跑步。

It’s where Jesse Owens would have practiced his golden medal winning runs.

这是杰西·欧文斯 (Jesse Owens) 练习金牌获胜的地方。

I thought maybe we could do a practice run first.

我觉得应该先排练一下。

Eddie, you're lucky this is just a practice run.

埃迪你真幸运这只是彩排。

During practice runs, the warheads in the missiles will be dummies.

【dummy】在演习中使用的导弹弹头将是仿制品。

Alright, perhaps we should do a practice run of the presentation first.

好的，或许我们应该先练习一下演示过程。

Well, it'd be a good practice run for my tutorial next week.

好吧，这是我下周辅导课的一次很好的练习。