It's very rare to see an unabbreviated ordinal number in a written date.

我们非常常这种写法我们写整个日期的时候。

And fiftieth is the correct way to write the ordinal number.

而 fiftith 才是序数词的正确写法。

When you're ordering things, so when ordinal numbers like second, fifth, are used as adjectives.

给某些事物排序时，那么这时序数词像是第二，第五，作为冠词使。

We use ordinal numbers to see which comes first.

我们看是哪个先的时候，使序数。

Finally, you might also hear ordinal numbers used as an adjective.

最后，可能到序数作形容词。

But in the Olympic games, ordinal numbers are of central importance.

但是奥运上，序数才是最重要的。

All of the other ordinal numbers end in a TH.

所有其他以TH结尾的序数词。

Ordinal numbers are numbers that show the order of things.

序数词表示的是事物的顺序。

Ordinal numbers suggest an order of things – think the order of winners in the Olympics.

序数代表事物的顺序--想想奥运获胜者的顺序。

The three most important ordinal numbers in the Olympics are first, second, and third.

奥运上最重要的三个序号是第一、第二和第三。

You'll see a number up here, it'll be an ordinal number.

大家看到数字出现这里，它是一个序数词。

Ordinal numbers can act as nouns, adjectives, or adverbs.

序数可以充名词、形容词或副词。

You will learn how subjects such as ordinal numbers and sentence fragments help describe the events and results of the competitions.

将了解如何使序数词和句子成分述比赛和结果。

And when we talk about the Olympics, we use ordinal numbers for all of these purposes.

我们谈到奥运时，我们使序号来展示这些词性。

Ordinal numbers are one important area of grammar that connects with the Olympics.

序数是与奥运相关的一个重要语法领域。

Notice that I used in ordinal number, eighth.

请注意， 我序数中使了第八个。

These ordinal numbers are necessary for talking about today's date.

这些序数对于谈论今天的日期是必要的。

One type of transition signal is ordinal numbers. Listen.

一种类型的转换信号是序数。 。

The ordinal numbers are first, second, third, fourth and so on.

序数为第一、第二、第三、第四等。

" Second" is what we would call an " ordinal (ordinal) number."

“第二” 就是我们所说的“序数（ordinal）数” 。