不可数的

In a compact system, the limit set of a point can b e countable or uncountable .

紧空间上的动力系统中一点 x的极限集可能是可数的也可能是不可数的。

Used before an uncountable noun to refer to a countable meaning of noun .

用在不可数名词前，使该名词作为可数名词的用法。

English nouns can be practically classified into countable nouns and uncountable noun s.

英语名词可以从实用的角度分为可数名词及不可数名词。

T: Sometimes, the same noun can be countable and uncountable. But it is often with a change of meaning.

有些名词具有可数与不可数的用法，通常意思上会有所改变。

It is uncountable.

它是不可数的。

Similarly, some uncount nouns can be mass nouns when they refer to types of something. For example,'cheese' is usually an uncount noun but you can talk about 'a large range of cheeses'.

同样地，一些不可数名词可以再提及事物的种类时变成物质名词；例如'cheese'通常是一个不可数名词，但你可以说'a large range of cheeses'

Most of the vocabulary wasn't new but the focus was more around grammar; using plurals versus singular form and countable and uncountablenouns.

我们学习的多数都不是新词汇，重点是学习语法；使用复数和单数名词，可数和不可数名词。

But when the uncountable noun is modified by and adjective or a prepositional phrase, it becomes countable and therefore can be modified by the indefinite article to refer to an individual or a specific type.

英语的不可数名词不能冠以不定冠词，但当不可数名词受到形容词或介词短语的修饰或限定时却变成可数名词，因而可以受到不定冠词的修饰，表示某种个别的或特殊的情况。

The uncountable noun should not be preceded by the indefinite article. But when the uncountable noun is modified by and adjective or a prepositional phrase, it becomes countable and therefore can be modified by the indefinite article to refer to an individual or a specific type.

英语的不可数名词不能冠以不定冠词，但当不可数名词受到形容词或介词短语的修饰或限定时却变成可数名词，因而可以受到不定冠词的修饰，表示某种个别的或特殊的情况。

You can use "the" in front of any noun, whether it is a singular count noun, an uncount noun, or a plural count noun.

定冠词&the&是最常见的限定词。当所指的人物或事物双方都知道的时候可用&the&，它可用在任何名词前，包括单数可数，不可数名词，复数可数名词。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。