PTE Re-tell Lecture 真实讲座练习题:三维空间

在PTE中,无论是Summarise Spoken Text 还是 Re-tell Lecture的考题大都是从真实的讲座或者演讲中截取的,

中间经常经常夹杂很多不同的环境音.很多同学都反映有时未必是听不懂,而是听不到. 鉴于此,墨尔本文波雅思PTE专门为大家总结了真实讲座的PTE练习音频,相比新闻音频来说,整体更加接近PTE考试的真题,内容方面,我们也会为大家提供考试中存在的近似题,最近我们会持续更新,敬请期待!


A dimension of space is basically an independent direction in which in principle you could move, you could walk, so we talk about left and right, you can freely move left right, back forth, you can move back forth, up down, you can freely move up down as well. If you consider a diagonal direction, that’s not a new direction because that’s just a combination of moving this way and that way. So when we talk about dimensions, we are talking about the independent directions, which you can move. Another way to think about dimensions, they are the data that needs to be specified in order to delineate where something takes place. So if you’re having a dinner party, you give your friend a straight, a cross straight in the floor number, three pieces of information to nail down a location in three dimensions in the space. According to the string theory, in reality you need to give your friend more than just those three pieces of information if you really want him or her to know where to go. You need to tell them coordinates, data, that’s specifies where in the actual dimensions the dinner party’s taking place, too, but because the actual dimensions we think are so small, it does not matter to your friend whether they show up exactly at the right location and actual dimensions or not because things are not able to penetrate them in any meaningful way. But that’s what dimension would be, it’s a piece of data necessary to delineate where something takes place.

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