到底是猪是牛数量的2倍多，还是牛是猪数量的两倍多？

一、倍数表达法
1、twice的用法：
twice as many…as;   twice as much…as;    
twice + n.(可以是代词，比如that);    twice + what从句;  
*：一个大家常误会的句子：
The farm has more than twice as many cows as it has pigs.: 农场有多于猪两倍多的牛的数量（农场牛的数量比猪的两倍还要多）。（很多人会误读为猪比牛多。）
   解读方法：可以类比一下A has B twice as many as C这个比较句型也可以写为A has twice as many B as C. 所以句子的核心是A has B，即：The farm has cows.
   详细解读：twice as …as中前一个as是副词，more than twice as修饰many；而as it has pigs中的as自然是个连词，所以后面跟的是一个adverbial clause（状语从句/副词从句），而as…as句型比较特殊，后面的as要与前面as所修饰的内容相呼应，所以as it has pigs应该与前面as所修饰的对象many相呼应，即as it has pigs也是修饰了many。不管怎么说as it has pigs都不是核心成分。这样翻译过来就是农场有牛，相当于两倍多的猪。故，牛多猪少。

来自语法笔记08

一、倍数表达法
1、twice的用法：
twice as many…as;   twice as much…as;    
twice + n.(可以是代词，比如that);    twice + what从句;  
*：一个大家常误会的句子：
The farm has more than twice as many cows as it has pigs.: 农场有多于猪两倍多的牛的数量（农场牛的数量比猪的两倍还要多）。（很多人会误读为猪比牛多。）
   解读方法：可以类比一下A has B twice as many as C这个比较句型也可以写为A has twice as many B as C. 所以句子的核心是A has B，即：The farm has cows.
   详细解读：twice as …as中前一个as是副词，more than twice as修饰many；而as it has pigs中的as自然是个连词，所以后面跟的是一个adverbial clause（状语从句/副词从句），而as…as句型比较特殊，后面的as要与前面as所修饰的内容相呼应，所以as it has pigs应该与前面as所修饰的对象many相呼应，即as it has pigs也是修饰了many。不管怎么说as it has pigs都不是核心成分。这样翻译过来就是农场有牛，相当于两倍多的猪。故，牛多猪少。

来自语法笔记08