quantity的双解释义 quantity的双解释义是什么

1. how much there is or how many there are of something that you can quantify
2. an adequate or large amount;

   "he had a quantity of ammunition"
   

3. the concept that something has a magnitude and can be represented in mathematical expressions by a constant or a variable

1.quantity：qty; 定额，数量

2.quantity：quant; 数量性

• double the quantity使数量翻一番
• produce huge quantity大量生产

• certain quantity若干数量
• great quantity大量
• large quantity相当大的数量
• small quantity小量
• unknown quantity未知量,难以预测的人或事

• in quantity数量上
• in great quantity大量

• a quantity of一定量的,一些,许多
• quantity of electricity电量
• quantity of heat热量

• A certain quantity or measure of renown.

  出自：S. Johnson

• At lunchtime he takes large quantities of illicit gin.

  出自：A. Djoleto

• A pound of anchovies, and the same quantity of bay-salt.

  出自：R. Brautigan

• The quantity of data processing involved made it impossible to run the system.

  出自：Studio News

1. quantity的基本意思是“数量”,是正式用语。作与质量相对而言的“数量”解时是不可数名词,指事物的“量”或“总数量”时是可数名词。quantity强调大批计量,含有准确测量的意味。
2. quantity不能用much, less等表示“多少”意义的词修饰,可用large, great, small等表示“大小”意义的词修饰。
3. a (large〔great〕) quantity of或quantities of的意思是“大量”,其后均可跟不可数名词或复数名词。在句中作主语时, a quantity of接不可数名词时,谓语动词用单数形式,接可数名词复数时,谓语动词用复数形式; quantities of修饰不可数名词或可数名词复数时,谓语动词都用复数形式。

1. quantity既可用于可数名词也可用于不可数名词，如a quantity of flowers和a quantity of water。