It's big compared to Earth, and is thought to have formed when a small planet impacted Earth at a grazing angle.

它相对来说很大，被认为是由一颗小行星切线撞击时产生的。

A Mars-sized planet, given the unofficial name Theia, slammed into our young planet, but it wasn't a head-on impact; it was a grazing collision.

一个火星大小的行星，它有个非正式的名字 Theia，撞上了我们年轻的星，但不是正面撞击，而是沿切线的掠射。

So, this line is called the tangent.

所以，这条线被称为切线。

You still stare off into the distance and go on science tangents!

- 啊！ 您仍然凝视远方， 继续科学切线！

If I add my next tangent line up here, it is around 0.5.

如果我在这上面加上我的下一条切线，它的值大约是0.5。

I'd say, well, sometimes you say, could this use one more tangent?

我会说，好吧，有时你会说，这可以再用一条切线吗？

All that tangential material just distracts from the main argument.

所有这些切线材料都会分散对主要论点的注意力。

He dropped the newspaper, yawned, and let his mind drift off at a tangent.

他丢下报纸， 打了个哈欠， 让思绪飘向了一个切线。

You can’t see the big picture or even recall your last epiphany because you’re caught up in the momentum of a particular idea and your neurons keep firing until a new idea takes hold and you go off on a new tangent.

你无法看到大局，甚至无法回忆起你上一次的顿悟，因为你被某个法的动力所吸引，你的神经元一直在燃烧，直到一个新法生根发芽，你开始了新的切线。

To speak of their doings on this pilgrimage, of ingress and egress, of tangent and parallax, of external and internal contact, would avail nothing. Is it not all written in the chronicles of the Astronomical Society?

谈论他们在这次朝圣之旅中的所作所为，入口和出口，切线和视差，外部和内部接触，都无济于事。天文学会的编年史不都是这样写的吗？

'Hold on! ' said Doctor Copeland. 'You are getting off on a tangent. And besides, you are giving no attention to the very separate question of the Negro. I cannot get a word in edgeways.

'坚持，稍等！'科普兰医生说。 '你正在切线。此外，你没有注意到黑人这个非常独立的问题。我一句话也说不出来。

What a grown up movie tells you that it is okay to make mistakes because we can use the mistakes in the music of our life to find a lovely tangent to meander into.

一部长大的电影告诉你， 犯错误是可以的， 因为我们可以利用生活中音乐中的错误来找到一个可爱的切线来蜿蜒曲折。

The setup for this problem is that we have three different circles, just in two-dimensional space, and what we're going to do is draw the external tangents to each pair of them.

这个问题的设是我们有三个不同的圆，都在二维空间中， 我们要做的是画出每对圆的外切线。

What we now call functions mathematical functions, which are Continuous that is that are not formed out of a discrete sets like the counting numbers for instance Newton there were already

我们现在称之为函数的数学函数，它们是连续的， 也就是说，它们不是由像计数数字那样的离散集合构成的。 举例来说，在牛顿的时代， 已经存在一些方法来解决涉及诸如求曲线下的面积和曲线的切线等问题， 但这些方法仅适用于某些且有限的曲线类型。

So, one, going off on a tangent, you shouldn't do that because you're going to lower your score for coherence, because coherence is, did the answer make sense?

所以，第一，切线，你不应该这样做， 因为你会降低连贯性的分数，因为连贯性是， 答案是否有意义？

I literally didn't understand a lot of it, kind of, won't go off on my crypto tangent, but I don't understand.

我确实不太理解其中的很多内容，有点， 不会偏离我的加密切线，但我不明白。

You're racing, you mainly want to aim to try and get to the inside and then get a cut.

你在比赛中， 主要目标是尽量往内侧走，然后切线超车。

I'm sorry if I go off on a tangent and start talking about something else.

很抱歉，如果我在切线上开始谈论其他事情。

But this tangent line is sloping down into the right.

但是这条切线向右倾斜。

And this is really where you get into the graffiti side of things because you look at these boxes and they're just all over the place and there's no real tangents going in the same direction.

这确实是你进入涂鸦方面的方，因为你看这些盒子，它们遍布整个方，并且没有真正的切线朝同一方向延伸。