Indefinite means vague or without clear limits.

Indefinite指模糊或者没有清限。

He is very childish but of indefinite age.

他很幼稚，但不知道确切年龄。

The indefinite article is either a or an.

不定冠词 a 或者 an。

Another rule for the indefinite articles " a" and " an" .

不定冠词“a”和“an”另个规则。

And notice that the time is indefinite again.

而且注意，时间又不确定。

So it means starting an illness — an indefinite Illness.

所以它意思开生病——种不确定疾病。

Let's start with the basics. There are two indefinite articles.

让我们从最基础开吧。有两个不定冠词。

Mr Gunay says only an “indefinite” loan will suffice.

居纳伊说“无限期出借”就足够了。

In the English language, there are definite and indefinite articles.

在英语中有定冠词与不定冠词。

It means a number bigger than one, but it's indefinite.

它意思更大数字，但它不确定。

And finally the word “this” is used instead of the indefinite article.

最后，单词this在句中代替了不定冠词位置。

The definite, indefinite and the zero that help us to define our nouns.

定冠词、不定冠词和零冠词，这些冠词可以帮我们说明名词。

Otherwise, we would need an indefinite article which is not there.

否则，我们将需要个不定冠词，而题目中没有不定冠词。

The indefinite article is a or an, a or an.

不定冠词 a 或 an，a 或 an。

Did you know, Rob, that numbers like zillion are called ’indefinite hyperbolic numerals?

罗伯，你可知道像类似无数这样数字叫做无限夸张数字？

And finally the word “this” can be used instead of the indefinite article.

最后，单词this在句中代替了不定冠词位置。

In many languages the indefinite article is actually just the number one.

在许多语言中，不定冠词其实数字。

I began to walk about the room, examining various indefinite objects in the half darkness.

我开在屋子里随便走走，在半明半暗光线中看看各种各样模糊不清摆饰。

Okay I talk more about definite and indefinite articles up here in this video.

我在这个视频中更加详细地谈论了定冠词和定冠词。

To Buck it was boundless delight, this hunting, fishing, and indefinite wandering through strange places.

巴克非常喜欢这样安排, 打猎、捕鱼、在陌生地方无限期地游荡。