Both is used only with plural countable nouns and refers to two in number.

Point Countable Covers and the Theory of Maps.

点可数覆盖与映射理论“, ”

Countable and uncountable nouns: ice cream , salad , chicken.

比较下列名词 --- 可数名词与不可数名词.

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

英语名词可以从实用的角度分为可数名词及不可数名词.

Hardware is generally tangible and its amount is a countable characteristic.

硬件通常是有形产品,其量具有计数的特性.

Scanning can be recursive and countable files extensions can de defined.

扫描是递归式的,可以定义被扫描的文件的扩展名.

Nouns such as book, pen, apple and toy are countable nouns.

像书 、 笔 、 苹果和玩具这类名词,称其为可数名词.

All and half can be used with countable and uncountable nouns.

Allandhalf与可数名词和不可数名词连用均可.

She saying nouns have two types – countable and uncountable.

她说名词有两种类型:可数及不可数名词.

Do, the mount of the cost of a countable application.

这样, 安装的费用数应用.

Eachband everybare generally used as determiners before singular countable nouns.

一般都作限定词,用于单数可数名词之前.

Only countable nouns can be used in the plural.

只有可数名词才有复数形式.

Is this word a countable noun or an uncountable noun?

一般说来,这里我们用代词来代名词.

The word " person " is a countable noun.

person 这个词是个可数名词.

The countdown has begun for the launch later today of the American space shuttle.

美国航天飞机的发射已于今天晚些时候开始进入倒计时。

There were three more things to do before countdown.

开始倒计时之前还有3件事要做。

the countdown to the wedding

婚礼的临近

They will also have the ability to spawn egg monsters that will countdown and explode.

他们同时能够产卵,这些卵会倒计时并爆炸.

The countdown has begun. Only two weeks until I graduate!

倒数计时已经开始了. 距离我毕业只剩下两星期而已!

Let's join the New Year countdown.

我们去参加跨年倒数吧!

A countdown indicator shows the time remaining until current candle close.

倒计时指示器显示的剩余时间,直到目前的蜡烛密切.