He is very childish but of indefinite age.

他很幼稚，但不知道确切的年龄。

And notice that the time is indefinite again.

而且注意，时间又是不确定的。

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

它的意思是比一更大的数字，但它是不确定的。

" No one" is an indefinite pronoun meaning " no person."

“No one”是一个不定代词，意思是“no person”（没有人）。

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

不定冠词“a”和“an”的另一个规则。

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

居纳说“无限期的出借”就足够了。

So it means starting an illness — an indefinite Illness.

所以它的意思是开始生病——一种不确定的疾病。

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

否则，我们将需要一个不定冠词，而题目中没有不定冠词。

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

在英语中有定冠词与不定冠词。

Our final expanded indefinite pronouns today begin with the word " every-."

我们今天最后一个扩展型不定代词以“every-”开头。

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的位置。

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的数字叫做无限夸张的数字？

Now can you give us some example of an indefinite… hyperbolic numeral?

现在你能给我举例某个无限夸张的数字例子吗？

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。

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的位置。

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

不定冠词是 a 或 an，a 或 an。

I talked about this a little in my last lesson about the indefinite article.

我在上一课关于不定冠词的内容中谈到了这一点。

Many English learners face a problem when trying to use expanded indefinite pronouns.

许多英语学习者在使用扩展型不定代词时都面临着一个问题。

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

巴克非常喜欢这样的安排, 打猎、捕鱼、在陌生的地方无限期地游荡。

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

我开始在屋子里随便走走，在半明半暗的光线中看看各种各样模糊不清的摆饰。