Because it takes longer, and I wanted to head velocity off at the pass.

因为那得等很长时间，而我想在种问题上 速战速决。

Well I chopped his head off, that usually does the trick.

我把他的头砍了，通常样就行了。

There's no point biting Jarvis's head off. You are new to it.

没必要给贾维斯脸色看。你确悉。

This vibrant city is the perfect place to head off on your North African adventure.

座充满活力的城市是您开启北非探险的理想之地。

Now let's head off for the city and the university club.

现在我们进城去，到大学俱乐部。

We can also use 'head off' just like 'head out', to leave.

我们也以像使用‘head out’一样来使用‘head off’，表示出发的意思。

–head off to the party, leaving her all alone.

去参加派对，让她一人呆着。

" As per usual, he heads off to work."

“像往常一样，他去上班了。”

That woman of course is some guy or guys probably laughing their heads off somewhere.

人当然是某男人或一群男人，他们正在某地方狂笑已。

But before I head off, let's explain the phrase Feifei used.

但在我离开之前，让我们解释一下菲菲所用的短语。

More colloquially, I head off to work.

更口语化地说，我去上班了。

Some of you are heading off to start careers as programmers.

有些毕业生将开始作为程序员的职业生涯。

He also seems eager to head off an arms race.

他似乎急于阻止军备竞赛的发生。

Maybe he laughed and you bit the man's head off.

或许他嘲笑你，你就杀了他。

And with our companions under control, we headed off to rescue our friends.

同伴被控制后，我们出发去营救朋友们。

The family head off to the dining room and are served dinner.

全家人来到餐厅享用晚餐。

It's a safeguard designed to head off disaster on Mars.

是为了防止火星任务失败的保全方案。

What time do you want to head off in the morning?

你早晨想要什么时候出发呢？

Alright, it's time to head off again, are you ready for Italy?

好了，是时候再次出发了，你准备好去意大利了吗？

And an even more aggressive response would be 'to bite someone's head off'.

“严厉斥责”。