时间简史

I was glad that he did not know the subject of the talk I had just given

我很高兴他不知道 我刚给出的主题是

the possibility that the universe had no beginning no moment of creation.

宇宙没有起点的可能性 没有开天辟地的那一瞬间

There were theories in the early '70s the first type of creation theories

70年代早期有一些理论 第一种类型的创造论

where the people concerned started off with a fixed, external space and time which for eternity was empty

他们从一个 固定的外部时空出发 这个外部时空永远都是空的

and then suddenly, for some unknown reason, the universe nucleates at a particular point and then, bang, it blows apart.

然后 突然 因为某种未知的原因 宇宙到某个特定的点成核 砰 它爆炸了

But the trouble is that when space and time appear in the classical theory

但问题是 当时间和空间出现在经典理论中

that actual point itself is a singular point in the mathematics.

那个点本身是个数学上的奇点

Mathematics breaks down, and so you cannot use that to give you a creation theory.

数学无法处理了 所以 你不能用这个来得出创造论

If one goes back in time one comes to the Big Bang singularity where the laws of physics break down.

如果一个人回到从前 回到大爆炸的奇点 那里的物理法则就不复存在

But there's another direction of time that one can go in which avoids the singularity.

但是有另一个时间线的方向 可以顺着那个方向来避免奇点

This is called the imaginary direction of time.

这被称作时间的虚方向

In imaginary time there need not be any singularities which form a beginning or end to time.

在虚时间里 不需要 形成任何时间上有开始或结束的奇点

重点讲解

1、subject

主题;题目;话题;题材;问题

It was I who first raised the subject of plastic surgery.

是我第一个提到整形手术这个话题的。

the president's own views on the subject.

总统在此问题上的个人观点

(批评、学习、调查的)对象

Over the past few years, some of the positions Mr. Meredith has adopted have made him the subject of criticism.

在过去的几年里，梅雷迪思先生所采取的某些立场使他成为了批评的对象。

He's now the subject of an official inquiry.

他现在是官方调查的对象。

(知识、研究)领域;(尤指)学科，科目，课程

Surprisingly, mathematics was voted their favourite subject.

令人惊讶的是，数学课被选为他们最喜欢的科目。

a tutor in maths and science subjects.

辅导数学和理科课程的家教

2、direction

方向;方位

St Andrews was ten miles in the opposite direction.

圣安德鲁斯在相反方向上 10 英里处。

He drove off in the direction of Larry's shop.

他驾车朝着拉里商店的方向驶去。

（发展）方向，趋势，倾向

They threatened to walk out if the party did not change direction.

他们威胁说，如果该党不改变方针，他们就将集体退席。

I've never done any sustained writing, but that might be one of my next directions.

我以前从未尝试过持续写作，不过那可能是我下一步努力的方向之一。

指示;说明;指路

I should know by now not to throw away the directions until we've finished cooking.

现在我知道了不该在饭没做完之前就扔掉烹饪说明。

He proceeded to give Dan directions to the computer room.

他接着告诉丹去计算机房该怎么走。