都对。又如：

She put the bite on me so that she could buy a pair of new shoes.  她向我借钱,以便可以买一双新鞋。

来自《简明英汉词典》

George needed a new pair of shoes.   乔治需要一双新鞋。

来自辞典例句

但是，英语习惯上更倾向于把形容词放在“量词”之前，例如：

Here is a good piece of news for you.

但是，关于“量词”跟形容词搭配的问题，有两种情况。我分别举例讲解：

第一种情况：a good piece of news = a piece of good news

good 显然是修饰中心词news，说明news 的性质（好坏），在此情况下，其位置既可以放在piece 之前，也可以放在news 之前。

第二种情况：a big cup of milk ≠ a cup of big milk

big 是修饰cup的，说明其“大小”，它不可能也无法修饰milk。所以，只能放在cup 之前。

▲ 在“a + (表示容量、计量概念的)名词+ of + 名词（不可数名词或可数名词复数）”结构中，如果该形容词是描述性质，在意思上是修饰最后的那个中心名词，英美人在习惯上经常放在第一个(表示容量、计量概念的)名词前，也可放在中心名词之前。例如：

a good piece of news = a piece of good news

an important piece of news = a piece of important news

an interesting piece of news = a piece of interesting news

an exciting piece of news = a piece of exciting news

a huge pair of eyes = a pair of huge eyes

an oily old pair of jeans =  a pair of oily old jeans

a clean pair of pants = a pair of clean pants

▲ 但是，如果这个形容词是修饰“容量、计量”概念的名词，而不是修饰后面的中心名词，则必须放在第一个名词之前。

a big/small bag of corn

a big/small box of sweets

a big/small bottle of wine

a big/small cup of milk

a big/small glass of beer

a big/small basin of water

a big/small pile of bricks

a big/small basket of fruit

a big/small sheet of paper

a big/small drop of rain

a big/small bar of chocolate  

a big/small block of ice

a big/small loaf of bread

a big/small grain of sand

a big/small crowd of people  

a gbig/small group of children

a big/small team of players  

a big/small sum of money