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

我们非常常用这种写法当我们在写整个日期的时。

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

而 fiftith 才是序数词的正确写法。

We use ordinal numbers to see which comes first.

当我们看是哪个先的时，使用序数。

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

最后，你可能还会听到序数用作形容词。

Now I gave you lots of different examples about how nouns can be unique and we also talked about how " the" should usually be used with ordinal numbers, when they're adjectives.

那我给了你很多不同的例子说明什才是特有名词，我们也谈论了 " the" 如何用于序数词，在它们用作形容词时。

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

大家会看到数字出现在这里，它会是一个序数词。

In both cases, the ordinal number is acting like a noun.

在这两个例子中，序数的作用都像一个名词。

Ordinal numbers also can act as adverbs.

序数也可以充当副词。

Ordinal numbers are tricky to pronounce because what makes them ordinal numbers is we actually add a bunch more consonant sounds onto the ends of each word.

序数词的发音稍显困难，因为我们是通过在每个词的后面加上一堆辅音来使它们成为序数词的。

All of the other ordinal numbers end in a TH.

所有其他以TH结尾的序数词。

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

但是在奥运会上，序数才是最重要的。

Ordinal numbers are numbers that show the order of things.

序数词表示的是事物的顺序。

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

序数是与奥运会相关的一个重要语法领域。

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

当你在给某些事物排序时，那这时序数词像是第二，第五，作为冠词使用。

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

你将了解如何使用序数词和句子成分述比赛和结果。

Okay, time for a very quick break and a chance to rest your tongue for a moment but don't go anywhere we're about to practise ordinal numbers.

好的，稍微休息一下，让你的舌头修正一下，但是哪里也不要去哦，我们马上要练习序数词了。

Notice in all of these examples the word the comes directly before that ordinal number.

请注意，在所有这些示例中， 词 the 直接出现在该序数之前。

Fifth has a short 'i' sound for the ordinal numbers.

第五的序数词发音有一个短促的'i'音。

Ordinal numbers refer to the order or position of something in a list.

序数词指的是某物在列表中的顺序或位置。

Now, the word ordinal number, that's when you're adding 3rd, 4th, 5th, 6th, 21st, 22nd.

现在，序数词这个词指的是添加第3、第4、第5、第6、第21、第22这样的词。